,graph+ ,calculator ,guidel9es          
,approv$ ,april #bjah                   
                                        
                                        
                                        
,brl ,au?or;y ( ,nor? ,am]ica           
                                        
                                        
                                        
                                        
                                        
,develop$ by ! ,brl ,au?or;y ( ,nor?    
  ,am]ica ,us+ .7,guid.e = ,transcrip;n 
  ,us+ ! ,neme? ,code )9 ,,ueb ,3texts.'
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
,9 #a ,volume                           
,brl pages t#a-t#e1 p#a-p#f1 & #a-#ajb  
,pr9t pages i-aiv & #a-a#fa          t#a

                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        

           ,,,special symbols           
            us$ 9 ? volume,'            
                                        
.= ,dot locator = m5;n2 prec$es items 9 
  a li/                                 
.=_% ,op5+ ,neme? ,code 9dicator        
.=_: ,neme? ,code t]m9ator "<,neme?     
  ,code ,symbol">                       
.=,' ,s+le-^w swit* 9dicator "<,neme?   
  ,code ,symbol">                       
                                        
    ,calculator ,scre5 ,symbols         
.== ,"q m>k                             
.=$= ,solid cursor                      
.=$gcs ,scre5 9dicator                  
.=$o ,"r-po9t+ >r[h1d                   
.=$<o ,upw>d-po9t+ >r[h1d               
.=$%o ,d[nw>d-po9t+ >r[h1d              
.=$[ ,left-po9t+ >r[h1d                 
.=_ ,hi<li<t 9dicator                   
                                        
    ,calculator ,key/roke ,symbols      
.=$l<o ,up-po9t+ >r[h1d                 
.=$l%o ,d[n-po9t+ >r[h1d                
.=$lo ,"r-po9t+ >r[h1d               t#c

.=$l[ ,left-po9t+ >r[h1d                
                                        
   ,graph ,l9e ,/yles                   
.=$l** ,?9 l9e                          
.=$l*** ,?ick l9e                       
.=$3.* ,circle ) pa?                    
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        

         ,,transcrib]'s ,,notes         
                                        
  ,9 ! pres5ta;n ( ,graph+ ,calculator  
mat]ial "s excep;ns to ! ,neme? ,code   
rules >e us$4                           
  ,2c ( ! limita;ns ( graph+            
calculators1 pr9t type size v>ia;ns &   
subscripts may n 2 %[n4 ,9 brl all      
id5tifi] numb]s 9 items _% ;,l ,l1 ,l2  
''' ,y1 ,y2 ''' ,plot;1 ,plot;2 ''' _:  
etc4 >e %[n z subscripts4               
  ,no space is left 2f or af ! equal    
sign 9 ! _% ,y.k _: key/roke4           
  ,com;ts >e sep>at$ f ! samples ) two  
blank l9es4                             
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                     t#e

                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        

            ,table ( ,3t5ts         i-ii
                                        
               ,guidel9es               
#a ,graph+ ,calculator ,labels """""" #a
#b ,calculator ,key/roke """""""""""" #a
#c ,text ,surr.d+ ,scre5 """""""""""" #b
#d ,graph+ ,calculator ,scre5s """""" #b
#e ,mat]ial )9 ! ,scre5 """"""""""""" #c
#f ,excep;ns to ,neme? ,code ,rules   #d
#g ,graphs """""""""""""""""""""""""" #e
                                        
    ,symbols = ,graph+ ,calculators     
#h ,symbols ,li/$ on ! ,special         
  ,symbols ,page """""""""""""""""""" #f
#i ,neme? ,code ,symbols ,n ,li/$       
  on ! ,special ,symbols ,page """""" #i
                                        
                ,samples                
#a """"""""""""""""""""""""""""""""" #aa
  ,key/rokes                            
  ,reta9+ d\ble caps & quota;n          
    m>ks z 9 pr9t                       
  ,up >r[ )9 a key/roke                 
#b """"""""""""""""""""""""""""""""" #ac
                                     p#a

                                     aii
  ,calculator scre5 box l9es            
  ,emb$d$ transcrib]'s notes            
  ,5gli% lr 9dicator                    
  ,greek lrs                            
  ,hi<li<t+ 9 ! scre5                   
  ,key/rokes                            
  ,ma? c>et                             
  ,no 3trac;ns )9 a scre5               
  ,"r-ju/ifi$ mat]ial 9 ! scre5         
  ,"r-po9t+ >r[h1d 9 ! scre5            
#c """"""""""""""""""""""""""""""""" #ae
  ,hi<li<t+                             
  ,hyph5s                               
  ,comp>ison sign                       
  ,horizontal l9e                       
  ,subscript id5tifi]s                  
#d """"""""""""""""""""""""""""""""" #ag
  ,blank l9e z 9 pr9t                   
  ,blank space 9 pr9t                   
  ,d[n-po9t+ >r[ ) %aft                 
  ,emb$d$ transcrib]'s note             
  ,hi<li<t+                             
  ,num]ic 9dicator foll[+ a "q m>k      
  ,punctua;n 9dicator                   

                                     bii
  ,"q m>k                               
-------------------------------------iii
  ,"r-ju/ifi$ mat]ial                   
  ,subscript id5tifi]s                  
#e """"""""""""""""""""""""""""""""" #bb
  ,ellipses                             
  ,key/rokes                            
  ,ma? c>et                             
  ,matrices                             
  ,multiplica;n a/]isk                  
  ,"r-ju/ifi$ mat]ial                   
  ,"r-po9t+ >r[ ) %aft 9 a scre5        
  ,"r-po9t+ >r[ ) %aft 9 key/roke       
  ,squ>e brackets 9dicat+ keys          
#f """"""""""""""""""""""""""""""""" #bh
  ,matrices                             
  ,"pial l9e ( pr9t at ! top ( a        
    scre5                               
  ,"r- & left-ju/ifi$ mat]ial           
  ,"r-po9t+ >r[s                        
#g """"""""""""""""""""""""""""""""" #ca
  ,5gli% lr 9dicator                    
  ,numb]$ scre5                         
                                     p#c

                                    aiii
  ,greek lrs                            
  ,hi<li<t+                             
  ,id5tify+ numb]s z subscripts         
  ,ma? c>et                             
  ,sep>a;n l9e                          
  ,table =mat                           
#h """"""""""""""""""""""""""""""""" #cd
  ,greek lrs                            
  ,id5tify+ numb]s z subscripts         
  ,9d5t$ l9es                           
  ,key/rokes                            
  ,l9e /yles                            
  ,ma? c>et                             
#i """"""""""""""""""""""""""""""""" #cg
  ,>r[s                                 
  ,c5t]$ text                           
  ,hi<li<t+                             
  ,horizontal l9es )9 ! scre5           
  ,key/rokes                            
  ,l9e /yles                            
  ,replicat$ pr9t 9 surr.d+ text        
  ,runov] m>g9                          
  ,subscripts                           
#aj """""""""""""""""""""""""""""""" #dd

                                    biii
  ,hi<li<t+                             
  ,horizontal l9es )9 ! scre5           
--------------------------------------iv
  ,key/rokes                            
  ,l9e /yles                            
  ,"pial scre5                          
  ,subscript numb]s                     
  ,table =mat                           
#aa """""""""""""""""""""""""""""""" #dg
  ,hi<li<t+                             
  ,key/rokes                            
  ,l9e /yles                            
  ,replicat$ pr9t 9 surr.d+ text        
  ,subscript numb]s                     
#ab """""""""""""""""""""""""""""""" #ed
  ,d[n-po9t+ >r[ ) %aft                 
  ,hi<li<t+                             
  ,plot types                           
  ,replicat$ pr9t 9 surr.d+ text        
  ,subscript numb]s                     
#ac """""""""""""""""""""""""""""""" #eg
  ,blank space 9 pr9t                   
  ,*eck m>k                             
                                     p#e

                                     aiv
  ,func;n icons & requir$               
    transcrib]'s note                   
  ,9d5t$ l9es 9 ! scre5                 
  ,key/rokes                            
  ,transcrib]'s notes                   
  ,up-po9t+ >r[h1d                      
  ,drop-d[n scre5 )9 a scre5            
  ,horizontal li/                       
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        

   ,,,graph+ calculator guidel9es,'   #a
                                        
  ,graph+ calculator guidel9es >e bas$  
on ! .7,neme? ,brl ,code = ,ma!matics & 
,sci;e ,nota;n1 #aigb ,revi.n1          
#bjjg-#bjae ,updates.' & ! .7,guid.e =  
,transcrip;n ,us+ ! ,neme? ,code )9     
,,ueb ,3texts4.'                        
                                        
#a ,graph+ ,calculator ,labels          
  ,,ti-#ha1 ,,ti-#hb1 ,,ti-#hd ,plus1   
  ,,ti-#ib ,plus1 etc4                  
#b ,calculator ,key/roke                
  #b4a ,! key/roke may 2 %[n 9 pr9t text
      ) brackets1 a cle> or %ad$        
      rectangul> box1 or a cle>         
      rectangul> box ) r.d$ corn]s1 etc4
      ,foll[ ,neme? ,code1 ,sec;n #aaa;d
      = transcrib+ key labels4          
  #b4b ,key/rokes m/ 2 transcrib$ )9 !  
      ,neme? swit*es "<op5+ ,neme? ,code
      9dicator & ,neme? ,code t]m9ator">
  #b4c ,key/roke symbols3 calculator    
      key/roke 9dicator to op5 _% $k _:2
      t]m9a;n 9dicator to close       #a

      _% ] _:4                       a#a
    #b4c4a ,! key/roke symbols1 z "p ( !
      ,neme? ,code1 >e n li/$ on !      
      ,special ,symbols page4           
  #b4d ,if key/roke comm&s >e %[n z     
      fully capitaliz$ ^ws 9 pr9t1 reta9
      full capitaliza;n 9 brl4          
  #b4e ,no 3trac;ns >e us$ 9 ^ws )9     
      key/roke 9dicators4               
  #b4f ,no spaces >e 9s]t$ 2t key/rokes 
      or 2t items )9 key/rokes un.s !y  
      >e sep>at$ by commas 9 pr9t4      
    #b4f4a ,spaces >e 9s]t$ 2t key/rokes
      & explanatory bracket$ or p>5!siz$
      items4                            
    #b4f4b ,x is pref]able to keep      
      key/roke 3/ruc;ns on "o l9e if    
      possible4                         
    #b4f4c ,a divi.n may 2 made 2t      
      key/rokes b n )9 a key/roke       
      3/ruc;n4                          
  #b4g ,": pr9t %[s a box & brackets =  
      di6]5t r1sons1 reta9 bo?4         
                                        
                                        

#c ,text ,surr.d+ a ,scre5            #b
      ,emphasiz$ ^ws or expres.ns 9 !   
      surr.d+ text t replicate          
      ^ws_/expres.ns 9 ! scre5 %d 2     
      transcrib$ uncontract$ z 9 ! scre5
      & emphasiz$ z 9 pr9t4             
#d ,graph+ ,calculator ,scre5s          
      ,"ey?+ 9 ! scre5 is tr1t$ z       
      te*nical mat]ial4 ,! op5+ ,neme?  
      ,code 9dicator foll[$ by a space  
      alw prec$es ! scre5 9dicator 9 !  
      top scre5 l9e2 ! ,neme? ,code     
      t]m9ator is alw at ! 5d ( ! bottom
      scre5 l9e prec$$ by a space4      
  #d4a                                  
    .=gg ,clos+ scre5 l9e               
    .=$gcs ,scre5 9dicator              
    .=77 ,op5+ scre5 l9e                
    .=_% ,op5+ ,neme? 9dicator          
    .=_: ,neme? t]m9ator                
                                        
      ,= ! box 9 pr9t t %[s a calculator
      scre5 ) data 9 x1 use ! %ape      
      symbol & 8gcs0 = 8graph+          
      calculator scre50 foll[$ af a   #c

      space on ! same l9e by an      a#b
      op5+ scre5 l9e acr ! wid? ( !     
      page4 ,on ! l9e foll[+ ! 5d       
      "<bottom"> ( ! scre51 9s]t a clos+
      scre5 l9e4                        
                                        
_% $gcs 77777777777777777777777777777777
text                                    
text                                    
text                                    
ggggggggggggggggggggggggggggggggggggg _:
                                        
  #d4b ,! graph+ calculator scre5 uses !
      full wid? ( ! brl page4           
  #d4c ,a scre5 requires a blank l9e 2f 
      & af x except foll[+ an a3ompany+ 
      h1d+ or cap;n or prec$+ a s\rce   
      cita;n4                           
  #d4d ,keep ! data %[n on a scre5 tgr  
      on ! same page if possible4       
  #d4e ,if a scre5 is numb]$1 9s]t !    
      numb] transcrib$ 9 ,neme? ,code af
      ! scre5 9dicator ) a blank cell on
      ei side ( ! numb]4                
                                        

#e ,mat]ial )9 ! ,scre5               #c
  #e4a ,use no 3trac;ns )9 a scre54     
  #e4b ,/>t & /op text l9es z !y >e %[n 
      9 pr9t4                           
    #e4b4a ,l9es t >e 9d5t$ on ! scre5  
      >e 9d5t$ two cells to ! "r ( !    
      2g9n+ ( ! previ\s pr9t l9e4       
    #e4b4b ,l9es t >e "r-ju/ifi$ on !   
      scre5 >e transcrib$ f\r cells to !
      "r ( ! 2g9n+ ( ! previ\s l9e4     
      ,"r-ju/ifi$ expres.ns >e answ]s to
      calculator comm&s4 ,a l;g expres.n
      on a small scre5 may appe> to 2   
      bo? left- & "r-ju/ifi$4 ,!        
      transcrib] m/ decide f a3ompany+  
      text if x is an answ] to 2        
      transcrib$ z "r-ju/ifi$4          
    #e4b4c ,": two or m 3secutive l9es  
      >e "r-ju/ifi$1 ea* l9e w 2g9 9 !  
      same cell4                        
    #e4b4d ,": ^w"<s"> or equa;n"<s"> >e
      left- & "r-ju/ifi$ on ! same l9e1 
      !y >e transcrib$ on ! same l9e )  
      ?ree blank cells 2f ! "r-ju/ifi$  
      mat]ial4                        #e

    #e4b4e ,runov]s >e transcrib$    a#c
      on ! l9e 2l1 9d5t$ "o cell to ! "r
      ( ! 2g9n+ ( ! previ\s l9e4        
  #e4c ,9dicate hi<li<t$ >1s ) dots     
      #def4 ,! e6ect ( ! hi<li<t        
      9dicator is t]m9at$ by a space4   
      ,if m ?an "o t]m is hi<li<t$1     
      rep1t ! hi<li<t 9dicator4         
  #e4d ,omit font 9dicators o!r ?an     
      hi<li<t+ on text )9 a scre5 b     
      reta9 pr9t capitaliza;n4          
  #e4e ,symbols >e n 9s]t$ to replace   
      blank spaces 9 pr9t4              
  #e4f ,:5 items 9 a horizontal li/ 3si/
      ( two or m ^ws1 two spaces >e     
      9s]t$ 2t ea* item4                
  #e4g ,hyph5s acr columns >e replac$ ) 
      dot #es 9 brl4 ,a note on !       
      ,transcrib]'s ,notes page expla9s 
      ! *ange to pr9t4 ,! note is plac$ 
      at ! site if ? situa;n o3urs only 
      once 9 ! docu;t4                  
  #e4h ,horizontal l9es sep>at+ sec;ns (
      ! scre5 run ! wid? ( ! page4      
  #e4i ,matrices >e transcrib$ & align$ 

      ac to ,neme? ,code1 ,sec;n     b#c
      #ahc4                             
--------------------------------------#d
    #e4i4a ,if 5l>g$ gr\p+ signs >e n   
      us$ on ! scre5 9 pr9t1 use regul> 
      p>5!ses1 brackets1 etc4 ,a blank  
      l9e is n 9s]t$ prec$+ & foll[+ !  
      matrix 2c x is n a spatial        
      >range;t4                         
    #e4i4b ,if 5l>g$ gr\p+ signs >e us$ 
      on ! scre5 9 pr9t1 5l>g$ gr\p+    
      signs >e us$ 9 brl2 a blank l9e is
      requir$ prec$+ & foll[+ ! matrix  
      "<a spatial >range;t">1 except    
      immly foll[+ an op5 scre5 l9e or  
      prec$+ a clos+ scre5 l9e4         
  #e4aj ,>r[s1 >r[h1ds1 & comp>ison     
      signs 9 scre5s >e spac$ away f    
      surr.d+ text z 9 ,neme? ,code4 ,a 
      space is 9s]t$ foll[+ a colon     
      except :5 ! colon applies to !    
      foll[+ lr or ^w4                  
  #e4aa ,nec transcrib]'s notes >e plac$
      ei 2f or af ! scre51 n )9 ! scre54
  #e4ab ,func;n tabs %[n on ! m5u     #g

      b> 9 ! scre5 >e n 9clud$ 9 !   a#d
      brl un.s !y >e hi<li<t$ = a       
      "picul> r1son4                    
  #e4ac ,a numb] foll[+ a solid cursor  
      "<repres5t$ 9 brl by a %ape       
      9dicator foll[$ by a full cell">  
      requires a num]ic 9dicator4       
  #e4ad ,all symbols specific to !      
      graph+ calculator m/ 2 li/$ on !  
      ,special ,symbols page4           
#f ,excep;ns to ,neme? ,code ,rules     
      ,9 "s situa;ns excep;ns to !      
      ,neme? ,code rules w 2 appli$4 ,^!
      excep;ns %d 2 not$ on !           
      ,transcrib]'s ,notes page z \tl9$ 
      2l4 ,! note is plac$ at ! site if 
      ? situa;n o3urs only once 9 !     
      docu;t4 "<,sample transcrib]'s    
      notes >e %[n 9 italics4">         
  #f4a ,! numb]s 9 items l _% ,y"1, ''',
      ,l"1, ''', ,plot"1, ''', _: etc4  
      >e all id5tifi]s4 ,! limita;ns ( !
      graph+ calculator cause v>ia;ns 9 
      type size & place;t2 "<e4g41      
      subscripts >e n alw %[n z         

      subscripts">4 ,9 brl all ^!    b#d
      id5tifi] numb]s >e %[n z          
      subscripts1 :e!r foll[+ a lr or a 
      ^w4                               
        ,? v>ia;n %d 2 qualifi$ 9 a     
      transcrib]'s note on !            
      ,transcrib]'s ,notes page1 /at+ ! 
      limita;ns & v>ia;ns t appe> 9 !   
      v>i\s scre5s4                     
--------------------------------------#e
                                        
        ,su7e/$ ;,,tn3 .7,9 ! pres5ta;n 
      ( ,graph+ ,calculator mat]ial1    
      pr9t type size v>ia;ns &          
      subscripts may n 2 %[n4 ,9 brl all
      id5tifi] numb]s 9 items l _% ,l"1,
      ,l"2, ''', ,y"1, ,y"2, ''',       
      ,plot"1 ,plot"2 ''', _: .7etc41 >e
      %[n z subscripts4.'               
                                        
  #f4b ,= ! key/roke t %[s _% ,y.k _:1  
      no space is left 2f or af ! equal 
      sign4                             
                                        
                                      #i

        ,su7e/$ ;,,tn3 .7,9 !        a#e
      pres5ta;n ( ,graph+ ,calculator   
      mat]ial1 no space is left 2f or af
      ! equal sign 9 ! _% ,y.k _:       
      .1key/roke4                       
                                        
  #f4c ,blank l9es >e n 9s]t$ un.s a    
      blank l9e is %[n on ! calculator  
      scre54 ,? 9cludes blank l9es 2f & 
      af a matrix n %[n 9 5l>g$ gr\p+   
      symbols4 ,excep;ns3 ,blank l9es >e
      9s]t$ :5 a matrix is %[n 9 5l>g$  
      gr\p+ symbols4 ,:5 ano!r scre5 is 
      %[n )9 a calculator scre51 a blank
      l9e sep>ates ! scre5s4            
#g ,graphs                              
  #g4a ,calculator scre5s 9 pr9t %[+ !  
      graph l9es c 2 d"o z a tactile    
      draw+4 ,if ! calculator scre5     
      repres5ta;n is a copy ( an orig9al
      pr9t graph alr %[n previ\sly 9 !  
      text1 ! calculator scre5          
      repres5ta;n may 2 omitt$ 9 brl4   
      ,9dicate ! omis.n ) a transcrib]'s
      note at ! po9t ( omis.n4          

  #g4b ,:5 do+ ! tactile draw+ ( !   b#e
      graph+ calculator scre5s3         
    #g4b4a ,make ! \tl9e ( ! box t      
      9dicates ! scre5 v fa9t           
    #g4b4b ,2 a3urate ) ! 9t]sec;n (    
      graph l9es & ! axes & ) ! po9ts on
      ! l9es                            
    #g4b4c ,2 3si/5t & ev5 ) scale m>ks 
      on ! axes                         
    #g4b4d ,d n 9s]t grid l9es t >e n   
      %[n 9 pr9t                        
    #g4b4e ,ref] to ! late/ $i;n (      
      .7,guidel9es & ,/&>ds = ,tactile  
      ,graphics4.'                      
--------------------------------------#f
                                        
   ,,,symbols = graph+ calculators,'    
                                        
  ,! foll[+ symbols appe> 9 ! text & )9 
graph+ calculator scre5s4 ,! f/ gr\p (  
symbols "<sec;n #h"> %d 2 li/$ on !     
,special ,symbols page4 ,! symbols ( !  
second gr\p "<sec;n #i"> d n ne$ to 2   
li/$ 2c !y >e "p ( ! ,neme? ,code4      
                                     #aa

#h ,symbols ,li/$ on ! ,special      a#f
      ,symbols ,page3                   
  #h4a4 ,g5]al ,symbols                 
                                        
      .=$gcs ,graph+ calculator scre5   
        9dicator                        
      .=$w ,graph+ calculator results   
        w9d[                            
                                        
_% #0.44$k@*]300$k+]14$k.k] $w146] _:   
                                        
      .=_ ,hi<li<t 9dicator plac$ 2f a  
        ^w"<s">1 num]al"<s"> or gr\p (  
        symbols hi<li<t$ on ! scre54 ,! 
        e6ect ( ! hi<li<t 9dicator is   
        t]m9at$ by a space4             
                                        
  #h4b ,calculator key/roke symbols     
      "<cursor 9dicators f.d 9          
      n>rative"> "<,see ,sample #a4">   
                                        
      .=$_<o "<up"> "<%ape 9dicator1    
        fill$-9 9dicator1 directly-ov]  
        9dicator1 >r[h1d">              
      .=$_%o "<d[n"> "<%ape 9dicator1   

        fill$-9 9dicator1            b#f
        directly-"u 9dicator1 >r[h1d">  
      .=$_o "<"r"> "<%ape 9dicator1     
        fill$-9 9dicator1 "r-po9t+      
        >r[h1d">                        
      .=$_[ "<left"> "<%ape 9dicator1   
        fill$-9 9dicator1 left-po9t+    
        >r[h1d">                        
                                        
--------------------------------------#g
  #h4c ,symbols f.d )9 calculator       
      scre5s3                           
                                        
      .=$o ,"r-po9t+ >r[h1d4 ,? is      
        di6]5t f ! key/roke cursor      
        symbol4                         
      .=$[ ,left-po9t+ >r[h1d           
      .=$<o ,upw>d-po9t+ >r[h1d         
      .=$%o ,d[nw>d-po9t+ >r[h1d        
      .=$= ,solid cursor1 ei v]tical b>1
        rectangle1 or "ul9e cursor      
        "<%ape 9dicator1 full cell">    
      .== ,"q m>k                       
                                        
  #h4d ,graph l9e /yles "<^!         #ac

      symbols m/ 2 foll[$ by a       a#g
      space">3                          
                                        
      .=$_* dott$ l9e                   
      .=$_** ?9 l9e                     
      .=$_*** ?ick l9e                  
      .=$^_o l9e ) %ad+ abv             
      .=$;_[ l9e ) %ad+ 2l              
      .=$3.* circle ) small horizontal  
        l9e adjac5t & to ! left3 pa?1   
        l9e ( graph                     
      .=$.* circle )\t small horizontal 
        l9e 9 front2 animate1 animates  
        or traces ! $ge ( a graph )\t   
        draw+ a pa? or l9e              
                                        
--------------------------------------#h
  #h4e ,graph ,types                    
                                        
      ,plot ,type                       
  ,scatt]                               
  xy,l9e                                
  ,hi/ogram                             
  ,mod,boxplot                          
  ,boxplot                              

  ,norm,prob,plot                    a#h
                                        
      ,:5 symbols = ! graph types abv   
      appe> 9 a scre51 ! "n ( ! graph   
      type us$ is 5clos$ 9 braces4 ,d n 
      try to develop new symbols2 d n   
      draw !m z tactile diagrams4 "<,see
      ,sample #aa4">                    
        ,,su7e/$ ;,,tn3 .7,:5 symbols = 
      ! graph types appe> 9 a scre51 !  
      "n ( ! graph type us$ is 5clos$ 9 
      braces4.'                         
--------------------------------------#i
#i ,neme? ,code ,symbols ,n ,li/$ on !  
      ,special ,symbols ,page           
        ,symbols t >e 9clud$ 9 ! ,neme? 
      ,code >e n li/$ on ! ,special     
      ,symbols page4 ,! symbols 2l >e   
      examples f ? docu;t t >e 9clud$ 9 
      ! ,neme? ,code & wd n ne$ to 2    
      li/$ on ! ,special ,symbols page4 
                                        
      .=$k ,key/roke 9dicator           
      .=] ,t]m9a;n sign                 
      .=.,d ,greek capital delta     #ae

      .=.? ,greek l[]-case !ta       a#i
      .=.,s ,greek capital sigma        
      .=.s ,greek l[]-case sigma        
      .=$[33 ,left-po9t+ >r[ ) %aft     
      .=$33o ,"r-po9t+ >r[ ) %aft "<d n 
        use a 3tract$ "r-po9t+ >r[">    
      .=$<33o ,up-po9t+ >r[ ) %aft      
      .=$%33o ,d[n-po9t+ >r[ ) %aft     
      .=$4 ,holl[ box                   
      .=$_4 ,solid box                  
      .=$_d ,solid diamond              
      .=@# ,m1ns multiplica;n2 use      
        ,neme? a/]isk multiplica;n      
        symbol                          
      .=. ,decimal po9t1 p]iod          
      .=* ,dot multiplica;n sign        
      .=! ,9tegral                      
      .=& ,factorial                    
      .=@> ,*eck m>k                    
      .=_< ,ma? c>et                    
                                        
                                        
                                        
                                        
                                        

               ,,samples         #aj-#aa
                                        
               ,sample #a               
                                        
  ,to turn on ! calculator1 press       
_% $k,,on] _:4 ,"s 9=ma;n may appe> on !
scre54 ,9 ord] to cle> "ey?+ press3     
_% $k2nd]$k+]$k2] _:4 ,press            
_% $k2nd]$k+]$k3]$k2] _:4 ,at ? po9t !  
scre5 is cle>$ b ! cursor is al lo/4    
,press _% $k2nd] _: & hold !            
_% $k$_<o] _: key until ! scre5 d>k5s & 
! cursor reappe>s4                      
  ,! message 8,,mem ,,cleared0 w appe>  
on ! scre54                             
  ,! 4play scre5 & ! memory >e n[ cle> &
r1dy = use4                             
                                        
    ,example #d3                        
  _% $k,y.k]$k$_%o]$k$_%o]$k$_%o]$k2]   
$k,x_/,t]$k+]$k3]$k,,graph] _:          
  ,:at *ang$ :5 y graph$ ,example #d8   
,:y8                                    
                                        
                                     #ag

    @.<,com;ts@.>                   a#aa
,l9e #d3 ,use ! calculator key/roke     
  9dicator to op5 a key/roke & ! t]m9a;n
  9dicator to close4 ,? 3/ruc;n m/ 2    
  transcrib$ )9 ! ,neme? ,code swit*es  
  "<,graph+ ,calculator ,guidel9es      
  .<,,gc.> #b4a1 ,,gc #b4b &            
  ,,gc #b4c">4                          
,l9es #f-#g & #ah-#ai3 ,no spaces >e    
  9s]t$ 2t key/rokes "<,,gc #b4f">4     
,l9e #aj3 ,up >r[h1d )9 a key/roke      
  "<,,gc #h4b">                         
,l9e #ab3 ,reta9 quotes & full          
  capitaliza;n4 ,! ^ws ,,mem ,,cleared w
  2 replicat$ 9 a scre5 & %d 2          
  transcrib$ 9 surr.d+ text z 9 ! scre5 
  "<,,gc #c">4                          
,l9es #ah-#ai3 ,a divi.n may 2 made 2t  
  key/rokes b n )9 a key/roke 3/ruc;n   
  "<,,gc #b4f4c">4                      
,l9e #ah3 ,= ! key/roke t %[s           
  _% ,y.k _:1 "! is no space 2f or af ! 
  equal sign "<,,gc #f4b">              
,l9e #ai3 ,reta9 fully capitaliz$ ^ws 9 
  key/roke comm&s "<,,gc #b4d">4        

               ,sample #b        #ab-#ac
                                        
    #aa4 ,calculator ,notes             
  ,"s calculators1 l ! ,,ti-#hc1 h&le   
op]a;ns ) complex numb]s4 ,press        
_% $k,,mode] _: & set ! calculator z %[n
2l left4 @.<f/ scre5@.> ,get to ! home  
scre5 & 5t] ! op]a;n y wi% to p]=m4     
,note t i is a3ess$ by press+           
_% $k2nd]$k.]_4 ,',press $k,,enter] _:  
to obta9 yr answ]4 ,! scre51 2l c5t]1   
@.<second scre5@.> %[s ! result (       
_% (5-2i)(4+9i) _:4 ,rememb] t y c 3v]t 
decimal values to frac;nal values by    
press+                                  
_% $k,,math], $k,,enter]$k,,enter] _:4  
,y wd want to d ? :5 simplify+ a "q l   
_% ?3+i/4-5i# _:4 ,see ! scre5 2l "r4   
@.<?ird scre5@.>                        
                                        
                                        
    @.<,com;ts@.>                       
,l9e #f3 ,use ! calculator key/roke     
  9dicator to op5 a key/roke & ! t]m9a;n
  9dicator to close4 ,? 3/ruc;n m/   #ai

  2 transcrib$ )9 ! ,neme? ,code    a#ac
  swit*es "<,,gc #b4a1 ,,gc #b4b &      
  ,,gc #b4c">4 ,reta9 fully capitaliz$  
  ^ws 9 key/roke comm&s "<,,gc #b4d">4  
,l9es #g1 #ab1 & #ai3 ,emb$d$           
  transcrib]'s note cl>ify+ ! loca;n ( !
  ?ree scre5s4                          
,l9e #aj3 ,! s+le-^w swit* 9dicator 0   
  us$ 2f ,press to avoid swit*es4 ,no   
  3trac;ns >e us$ 9 ^ws )9 key/roke     
  comm&s "<,,gc #b4e">4                 
,l9e #af3 ,no spaces >e 9s]t$ 2t        
  key/rokes or 2t items )9 key/rokes1   
  un.s !y >e sep>at$ by commas 9 pr9t   
  "<,,gc #b4f">4 ,x is pref]able to keep
  key/rokes on "o l9e if possible       
  "<,,gc #b4f4b">4 ,reta9 full          
  capitaliza;n on ^ws 9 key/roke comm&s 
  "<,,gc #b4d">4 ,no 3trac;ns >e us$ 9  
  ^ws )9 key/roke comm&s "<,,gc #b4e">4 
                                        
                                        
                                        
                                        
                                        

_% $gcs777777777777777777777777777   #ad
_,normal ,sci ,eng                      
_,float #0 #1 #2 #3 #4 #5 #6 #7 #8 #9   
_,radian ,degree                        
_,func ,par ,pol ,seq                   
_,connected ,dot                        
_,sequential ,simul                     
,real _a+bi re_<.?i                     
_,full ,horiz ;,g-;,t                   
ggggggggggggggggggggggggggggggggggggg _:
                                        
_% $gcs 77777777777777777777777777777777
(5-2i)(4+9i)                            
    #38+37i                             
ggggggggggggggggggggggggggggggggggggg _:
                                        
_% $gcs 77777777777777777777777777777777
(3+i)_/(4-5i)                           
    #.1707317073+.46 '''                
,ans $o ,frac                           
    #7_/41+19_/41i                      
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
                                     #ba

    @.<,com;ts@.>                   a#ad
,l9e #a3 ,op5+ ,neme? ,code 9dicator &  
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4                          
,l9es #b-#i3 ,hi<li<t+ is 9dicat$ ) dots
  #def & hi<li<t+ is t]m9at$ by a space 
  "<,,gc #e4c">                         
,l9e #c3 ,! digits #j1 #a1 #b1 etc41 >e 
  spac$ f ea* o!r 2c ea* c 2 hi<li<t$   
  sep>ately z a *oice by ! us]4         
,l9es #e1 #f1 #g1 #h3 ,no 3trac;ns >e   
  us$ 9 ^ws )9 a calculator scre5       
  "<,,gc #e4a">                         
,l9e #h3 ,ma? c>et & ,greek l[]-case    
  !ta4                                  
,l9e #i3 ,lr 9dicators >e ne$$ on ! lrs 
  ;,g-;,t on ei side ( ! hyph5 z requir$
  by ! ,neme? ,code ) reg>d to s+le lrs4
,l9es #aj1 #ae1 #bb3 ,clos+ scre5 l9e & 
  ,neme? ,code t]m9ator "<,,gc #d &     
  ,,gc #d4a">4                          
,l9es #ad1 #ai1 #ba3 ,"r-ju/ifi$ l9es >e
  transcrib$ f\r cells to ! "r ( ! 2g9n+
  ( ! previ\s l9e "<,,gc #e4b4b">       
,l9e #bj3 ,"r-po9t+ >r[h1d )9 a         

  calculator scre5 "<,,gc #h4c">    b#ad
-------------------------------------#ae
                                        
               ,sample #c               
                                        
_% $gcs 77777777777777777777777777777777
,l1    ,l2  ,l3                         
"3333  "33  "33                         
#131   """  """                         
#114                                    
#167                                    
#180                                    
#126                                    
#134                                    
_#188                                   
3333333333333333333333333333333333333333
,l1(7) .k #188                          
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
    @.<,com;ts@.>                       
,l9e #c3 ,op5+ ,neme? ,code 9dicator &  
  op5+ scre5 l9e4 "<,,gc #d &           
  ,,gc #d4a">                           
,l9e #d3 ,id5tifi]s >e transcrib$    #bc

  z subscripts4 "<,,gc #f4a">       a#ae
,l9e #f-#ab3 ,hyph5s acr a column >e    
  replac$ ) guide dots4 "<,,gc #e4g">   
,l9e #ab3 ,! numb] #ahh is hi<li<t$ 9 ! 
  scre5 9 pr9t4                         
,l9e #ac3 ,a sep>a;n l9e is 9s]t$ 2t !  
  table & ! f9al expres.n1 z %[n 9 pr9t4
  ,! sep>a;n l9e is ! wid? ( ! brl page4
  "<,,gc #e4h">                         
,l9e #ad3 ,a space is 9s]t$ on ei side (
  a comp>ison sign4 "<,,gc #e4aj">      
,l9e #ae3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator4 "<,,gc #d &           
  ,,gc #d4a">                           
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        

               ,sample #d        #af-#ag
444 ,? scre5 tells u t "o root is       
_% ?3/4#+?2/5#i _:1 & asks u to press   
_% $k,,enter] _: to view ! o!r root4    
,do+ s results 9 ! second scre5 9 !     
second r[ 2l4 @.<f\r? scre5 2l@.> ,?    
scre5 tells u t ! o!r root is           
_% ?3/4#-?2/5#i _:4                     
                                        
_% $gcs 77777777777777777777777777777777
;,a ,,is                                
=#400                                   
;,b ,,is                                
=                                       
ggggggggggggggggggggggggggggggggggggg _:
                                        
_% $gcs 77777777777777777777777777777777
;,a ,,is                                
=#400                                   
;,b ,,is                                
=-#600                                  
;,c ,,is                                
=#289                                   
ggggggggggggggggggggggggggggggggggggg _:
                                     #be

                                    a#ag
    @.<,com;ts@.>                       
,l9e #d3 ,use ! calculator key/roke     
  9dicator to op5 a key/roke & ! t]m9a;n
  9dicator to close4 ,? 3/ruc;n m/ 2    
  transcrib$ )9 ! ,neme? ,code swit*es  
  "<,,gc #b4a1 ,,gc #b4b & ,,gc #b4c">4 
  ,reta9 fully capitaliz$ ^ws 9 key/roke
  comm&s "<,,gc #b4d">4 ,no 3trac;ns >e 
  us$ 9 ^ws )9 a key/roke 9dicator      
  "<,,gc #b4e">                         
,l9e #f3 ,emb$d$ transcrib]'s note      
  expla9+ ! loca;n ( scre5              
,l9es #aj1 #ag3 ,op5+ ,neme? ,code      
  9dicator & op5+ scre5 l9e "<,,gc #d & 
  ,,gc #d4a">4                          
,l9es #aa1 #ac1 #ah1 #bj1 #bb3 ,reta9   
  fully capitaliz$ ^ws )9 scre5s        
  "<,,gc #e4d">4                        
,l9es #ab1 #ad1 #ai1 #ba1 #bc3 ,"q m>k  
  is full cell "<,,gc #h4c">4 ,num]ic   
  9dicator is requir$ on a numb] foll[+ 
  a full cell4 "<,,gc #e4ad">           
,l9es #i1 #af1 #be3 ,blank l9es >e      
  requir$ by ,,gc #d4c4                 

,l9e #ae1 #bd3 ,clos+ scre5 l9e &   b#ag
  ,neme? ,code t]m9ator "<,,gc #d &     
  ,,gc #d4a">4                          
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                     #bg

_% $gcs 77777777777777777777777777   #ah
,,real ,,part                           
    #3_/4                               
,,imaginary ,,part                      
    #2_/5                               
    ;i                                  
                                        
,,press ,,enter                         
,,to ,,see #2nd ,,root                  
ggggggggggggggggggggggggggggggggggggg _:
                                        
_% $gcs 77777777777777777777777777777777
,,real ,,part                           
    #3_/4                               
,,imaginary ,,part                      
    -#2_/5                              
    ;i                                  
,,press                                 
,,enter ,,to ,,repeat                   
,,clear ,,to ,,quit                     
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
    @.<,com;ts@.>                       
,l9es #a & #ab3 ,op5+ ,neme? ,code      

  9dicator & op5+ scre5 l9e         a#ah
  "<,,gc #d & ,,gc #d4a">4              
,l9e #b3 ,reta9 fully capitaliz$ ^ws    
  "<,,gc #e4d"> & use no 3trac;ns )9 a  
  scre5 "<,,gc #e4a">4                  
,l9e #c3 ,"r-ju/ifi$ 9 pr9t4 ,2g9s f\r  
  cells to ! "r ( ! l9e abv             
  "<,,gc #e4b4b">4                      
,l9es #e-#f3 ,"r-ju/ifi$ 9 pr9t4 ,2g9s  
  f\r cells to ! "r ( ! l9e abv         
  "<,,gc #e4b4b">4 ,two 3secutive       
  "r-ju/ifi$ l9es >e transcrib$ 2g9n+ 9 
  ! same cell4 "<,,gc #e4b4c">          
,l9e #g3 ,blank l9e 9s]t$ to foll[ pr9t4
  "<,,gc #f4c">                         
,l9e #h-#i3 ,/>t & /op text l9es z !y >e
  %[n 9 pr9t "<,,gc #e4b">4 ,reta9 fully
  capitaliz$ ^ws "<,,gc #e4d"> & use no 
  3trac;ns )9 a scre5 "<,,gc #e4a">4    
,l9es #aj & #ba3 ,clos+ scre5 l9e &     
  ,neme? ,code t]m9ator "<,,gc #d &     
  ,,gc #d4a">4                          
,l9es #aa & #bb3 ,blank l9e is requir$  
  by ,,gc #d4c4                         
,l9es #ah-#bj3 ,/>t & /op text       #bi

  l9es z !y >e %[n 9 pr9t           b#ah
  "<,,gc #e4b">4 ,reta9 fully capitaliz$
  ^ws "<,,gc #e4d"> & use no 3trac;ns )9
  a scre5 "<,,gc #e4a">4                
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        

    #c4 ,solv+ ,graphically ,) ,a    #ai
    ,graph+ ,calculator                 
  ,provid$ ! quadratic equa;n has r1l   
roots1 ! equa;n c 2 solv$ graphically4  
,%[n 2l is ! graph ( ! quadratic func;n 
_% y .k x^2"-x-12 _:4 ,if we >e try+ to 
solve ! equa;n _% x^2"-x-12 .k #0 _:1 !n
we m]ely ne$ to exam9e ! graph (        
_% y .k x^2"-x-12 _:1 & det]m9e !       
;x-9t]cepts,-! ;x-coord9ates ( ! po9ts  
on ! graph ": ;y is #j4 ,cle>ly if we c 
f9d ! ;x values = : ;y is #j1 !n we h   
f.d ! ;x values = :                     
_% x^2"-x-12 .k #0 _:4                  
  ,! graph ( _% y .k x^2"-x-12 _: is    
drawn us+ ! w9d[ cr1t$ by press+        
_% $k,,zoom]$k6] _: z 2l4               
                                        
                                        
    @.<,com;ts@.>                       
,l9e #ag3 ,use ! calculator key/roke    
  9dicator to op5 a key/roke & ! t]m9a;n
  9dicator to close4 ,? 3/ruc;n m/ 2    
  transcrib$ )9 ! ,neme? ,code swit*es  
  "<,,gc #b4a1 ,,gc #b4b &           #ca

  ,,gc #b4c">4 ,no spaces >e        a#ai
  9s]t$ 2t key/rokes "<,,gc #b4f">4     
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        

_% $gcs 77777777777777777777777777   #bj
,y1 _.k ,x_<2-,x-12                     
,y2 .k                                  
,y3 .k                                  
,y4 .k                                  
,y5 .k                                  
,y6 .k                                  
,y7 .k                                  
,y8 .k                                  
ggggggggggggggggggggggggggggggggggggg _:
                                        
_% $gcs 77777777777777777777777777777777
_,,zoom ,,memory                        
#1_3 ,z,box                             
#2_3 ,zoom ,in                          
#3_3 ,zoom ,out                         
#4_3 ,z,decimal                         
#5_3 ,z,square                          
_#6_3 ,z,standard                       
#7 $%33o ,z,trig                        
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
                                        
                                     #cc

    @.<,com;ts@.>                   a#bj
,l9es #a & #ab3 ,op5+ ,neme? ,code      
  9dicator & op5+ scre5 l9e "<,,gc #d & 
  ,,gc #d4a">4                          
,l9e #a3 ,a top box l9e c appe> on l9e  
  #a :5 a runn+ h1d is n us$ "<.7,brl   
  ,=mats ,pr9ciples ( ,pr9t to ,brl     
  ,transcrip;n1 #bjaf.' .<,,bf.>">4     
,l9e #b3 ,! equal sign is hi<li<t$ 9 !  
  calculator scre5 9 pr9t4 ,hi<li<t+ is 
  t]m9at$ by a space "<,,gc #e4c">      
,l9es #b-#i3 ,id5tifi]s >e transcrib$ z 
  subscripts "<,,gc #f4a">              
,l9es #c-#i3 ,symbols >e n 9s]t$ to     
  replace blank spaces 9 pr9t           
  "<,,gc #e4e">4                        
,l9es #aj & #ba3 ,clos+ scre5 l9e &     
  ,neme? ,code t]m9ator "<,,gc #d &     
  ,,gc #d4a">4                          
,l9e #aa3 ,a blank l9e is requir$ by    
  ,,gc #d4c4                            
,l9e #ac3 8,,zoom0 is hi<li<t$ 9 pr9t   
  "<,,gc #e4c">4 ,reta9 full            
  capitaliza;n "<,,gc #e4d">4           
,l9es #ad-#ai3 ,p] ,neme? ,code1 a      

  punctua;n 9dicator is requir$     b#bj
  2t a numb] & punctua;n t foll[s4      
,l9es #ad-#bj3 ,reta9 pr9t capitaliza;n 
  "<,,gc #e4d"> & use no 3trac;ns )9 a  
  scre5 "<,,gc #e4a">4                  
,l9e #ai3 8#f30 is hi<li<t$ 9 pr9t      
  "<,,gc #e4c">4                        
,l9e #bj3 ,d[n-po9t+ >r[ ) %aft ,- a    
  ,neme? symbol "<,,gc #i">4            
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                     #ce

               ,sample #e        #ba-#bb
                                        
  ,to f9d ! matrix product _% ,a,b      
,'press $k,,matrix], $k1], $k@*],       
$k,,matrix], $k2], $k,,enter] _:4 ,!    
foll[+ scre5s result4                   
                                        
_% $gcs 77777777777777777777777777777777
@(,a@)@#@(,b@)                          
ggggggggggggggggggggggggggggggggggggg _:
                                        
_% $gcs 77777777777777777777777777777777
@(,a@)@#@(,b@)                          
    @(@(-#80 #56 @)                     
      @(#51  -#32@)@)                   
ggggggggggggggggggggggggggggggggggggg _:
                                        
  ,to squ>e matrix ;,d1 press           
_% $k,,matrix], $k4], $k_<], $k2],      
$k,,enter] _:4 ,! foll[+ scre5s result4 
                                        
_% $gcs 77777777777777777777777777777777
@(,d@)_<2                               
ggggggggggggggggggggggggggggggggggggg _:
                                        

                                    a#bb
    @.<,com;ts@.>                       
,l9es #d-#e & #ai-#bj3 ,use ! calculator
  key/roke 9dicator to op5 a key/roke & 
  ! t]m9a;n 9dicator to close4 ,?       
  3/ruc;n m/ 2 transcrib$ )9 ! ,neme?   
  ,code swit*es "<,,gc #b4a1 ,,gc #b4b &
  ,,gc #b4c">4 ,9 ? example1 brackets   
  9dicate key/rokes4 ,key/rokes >e spac$
  2c !y >e sep>at$ by commas            
  "<,,gc #b4f">4 ,reta9 fully capitaliz$
  ^ws 9 key/roke comm&s "<,,gc #b4d">4  
  ,use no 3trac;ns 9 ^ws )9 a key/roke  
  9dicator "<,,gc #b4e">4               
,l9e #d3 ,! s+le-^w swit* 9dicator 0 us$
  2f .1press to avoid swit*es4          
,l9es #g1 #aa1 #ag1 #ba & #be3 ,blank   
  l9es >e requir$ by ,,gc #d4c          
,l9es #h1 #ab1 & #bb3 ,op5+ ,neme? ,code
  9dicator & op5+ scre5 l9e "<,,gc #d & 
  ,,gc #d4a">4                          
,l9e #i3 ,! a/]isk is a multiplica;n    
  sign4 "<,neme? ,code">                
,l9es #aj1 #af1 & #bd3 ,clos+ scre5 l9e 
  & ,neme? ,code t]m9ator            #cg

  "<,,gc #d & ,,gc #d4a">4          b#bb
,l9es #ad & #ae3 ,? is a "r-ju/ifi$     
  matrix 9 pr9t & is 9d5t$ f\r cells4   
  ,align;t is ac to ,neme? ,code4 ,5l>g$
  gr\p+ signs >e .1n us$ 9 pr9t s ea*   
  l9e ( 8text0 is transcrib$ z a sep>ate
  l9e & .1no blank l9es 2f & af >e      
  requir$ "<>range;t is .1n spatial">   
  "<,,gc #e4i4a">4                      
,l9es #ai & #bc3 ,ma? c>et "<,neme?     
  ,code">                               
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        

_% $gcs 77777777777777777777777777   #bc
@(,d@)_<2                               
    @(@(#14  #16  #18 @)                
      @(-#26 -#31 -#36@)                
      @(#38  #46  #54 @)@)              
ggggggggggggggggggggggggggggggggggggg _:
                                        
    #c4 ,to ,/ore ,a ,result            
  ,if we wi% to /ore ! result (         
_% ,d^2 _:1 & we alr h ! answ] to       
_% ,d^2 _:1 z 9 ! scre5 2l left1 simply 
press _% $k,,sto$33o], $k,,matrix],     
$k5], $k,,enter] _: : results 9 ! scre5 
2l left4 @.<f/ scre5@.> ,( c\rse we *ose
matrix ;,e z ! place to /ore ! answ] to 
_% ,d^2 _:1 2c ;,e 0 n curr5tly 2+ us$ =
any o!r purpose4 ,to see if matrix ;,e  
r1lly does 3ta9 ! result ( _% ,d^2,     
,'press $k,,matrix], $k5], $k,,enter]   
_:4 ,? results 9 ! scre5 2l "r @.<second
scre5 2l@.> & 3firms t ;,e n[ does hold 
! answ] to _% ,d^2 _:4                  
                                        
                                        
                                     #ci

    @.<,com;ts@.>                   a#bc
,l9e #a3 ,op5+ ,neme? ,code 9dicator &  
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4                          
,l9e #b3 ,ma? c>et "<,neme? ,code">     
,l9es #c-#e3 ,? is a "r-ju/ifi$ matrix 9
  pr9t & is 9d5t$ f\r cells4 ,align;t is
  ac to ,neme? ,code4 ,5l>g$ gr\p+ signs
  >e .1n us$ 9 pr9t s ea* l9e ( 8text0  
  is transcrib$ z a sep>ate l9e & .1no  
  blank l9es 2f & af >e requir$         
  "<>range;t is .1n spatial">           
  "<,,gc #e4i4a">4                      
,l9e #f3 ,clos+ scre5 l9e & ,neme? ,code
  t]m9ator "<,,gc #d & ,,gc #d4a">4     
,l9e #g3 ,a blank l9e is requir$ by     
  ,,gc #d4c4                            
,l9es #ab & #ac3 ,use ! calculator      
  key/roke 9dicator to op5 a key/roke & 
  ! t]m9a;n 9dicator to close4 ,?       
  3/ruc;n m/ 2 transcrib$ )9 ! ,neme?   
  swit*es4 ,9 ? example1 brackets       
  9dicate key/rokes "<,,gc #b4a1        
  ,,gc #b4b & ,,gc #b4c">4 ,key/rokes >e
  spac$ 2c !y >e sep>at$ by commas      

  "<,,gc #b4f">4 ,reta9 fully       b#bc
  capitaliz$ ^ws 9 key/roke comm&s      
  "<,,gc #b4d">4 ,use no 3trac;ns 9 ^ws 
  )9 a key/roke 9dicator "<,,gc #b4e">4 
,l9e #ab3 ,"r-po9t+ >r[ ) %aft          
  "<,,gc #i">                           
,l9e #ad3 ,emb$d$ transcrib]'s note     
  expla9+ loca;n ( scre54               
,l9e #ai3 ,! s+le-^w swit* 9dicator 0   
  us$ 2f .1press to avoid swit*+ \ ( &  
  back 9to ,neme? ,code4                
,l9e #ba3 ,emb$d$ transcrib]'s note     
  expla9+ loca;n ( scre54               
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                     #da

_% $gcs 77777777777777777777777777   #bd
    @(@(#14  #16  #18 @)                
      @(-#26 -#31 -#36@)                
      @(#38  #46  #54 @)@)              
,ans $33o @(,e@)                        
    @(@(#14  #16  #18 @)                
      @(-#26 -#31 -#36@)                
      @(#38  #46  #54 @)@)              
ggggggggggggggggggggggggggggggggggggg _:
                                        
_% $gcs 77777777777777777777777777777777
    @(@(#14  #16  #18 @)                
      @(-#26 -#31 -#36@)                
      @(#38  #46  #54 @)@)              
@(,e@)                                  
    @(@(#14  #16  #18 @)                
      @(-#26 -#31 -#36@)                
      @(#38  #46  #54 @)@)              
ggggggggggggggggggggggggggggggggggggg _:
                                        
    #f4 ,3v]t+ ,f ,decimal ,to ,frac;nal
    ,=m                                 
  ,:5 we ask ! calculator to det]m9e !  
value (                                 
                                        

                                    a#bd
    @.<,com;ts@.>                       
,l9es #a & #aa3 op5+ ,neme? ,code       
  9dicator & op5+ scre5 l9e "<,,gc #d & 
  ,,gc #d4a">4                          
,l9e #a3 ,a top scre5 l9e c appe> on l9e
  #a :5 a runn+ h1d is n us$ "<,,bf">4  
,l9es #b-#d1 #f-#h1 #ab-#ad1 & #af-#ah3 
  ,^! >e "r-ju/ifi$ matrices 9 pr9t & >e
  9d5t$ f\r cells4 ,align;t is ac to    
  ,neme? ,code4 ,5l>g$ gr\p+ signs >e n 
  us$ 9 pr9t s ea* l9e ( 8text0 is      
  transcrib$ z a sep>ate l9e & no blank 
  l9es 2f & af >e requir$ "<>range;t is 
  n spatial"> "<,,gc #e4i4a">4          
,l9e #e3 ,"r-po9t+ >r[ ) %aft           
  "<,,gc #i">                           
,l9es #i & #ai3 ,clos+ scre5 l9e &      
  ,neme? ,code t]m9ator "<,,gc #d &     
  ,,gc #d4a">4                          
                                        
                                        
                                        
                                        
                                     #dc

_%                                   #be
                                        
@,(#3_/4   -#2_/5@,)@,(#1 #0    -#4@,), 
@,(-#7_/10 #1_/2 @,)@,(#3 #3_/5 -#2@,)  
                                        
_:                                      
x gives ! result ) decimal values "<2l  
left">4 @.<f/ scre5 2l@.> ,! ?ree dots  
9dicate t "p ( ! answ] matrix _c 2 se5  
on ! scre54 ,by us+ ! "r >r[ key we c   
see ! o!r 5tries "<2l c5t] & "r">4      
@.<second & ?ird scre5s@.>              
                                        
_% $gcs 77777777777777777777777777777777
@(,a@)@(,b@)                            
    @(@(-#.5333333333 '''               
      @(#.8           '''               
ggggggggggggggggggggggggggggggggggggg _:
                                        
_% $gcs 77777777777777777777777777777777
@(,a@)@(,b@)                            
    ''' -#.24 -#1.86666 '''             
    ''' #.3   #1.8      '''             
ggggggggggggggggggggggggggggggggggggg _:
                                        

                                    a#be
    @.<,com;ts@.>                       
,l9es #c & #d3 ,? is a matrix )9 text & 
  5l>g$ gr\p+ signs >e us$4 ,? spatial  
  >range;t requires a blank l9e 2f & af 
  "<,,gc #e4i4b"> & ,neme? ,code ^s#ahc4
,l9e #h3 ,emb$d$ transcrib]'s note      
  expla9+ loca;n ( scre54               
,l9e #ab3 ,emb$d$ transcrib]'s note     
  expla9+ loca;n ( scre5s4              
,l9es #ad & #bj3 ,op5+ ,neme? ,code     
  9dicator & op5+ scre5 l9e "<,,gc #d & 
  ,,gc #d4a">4                          
,l9es #af & #ag3 ,? matrix is m ( !     
  answ] to ! multiplica;n (             
  _% @(,a@)@(,b@) _: & is "r-ju/ifi$ 9  
  pr9t4 ,x 2g9s f\r cells to ! "r ( !   
  2g9n+ ( ! l9e abv "<,,gc #e4b4b">4 ,! 
  matrix is n t]m9at$ ) clos+ brackets  
  on ? scre52 ! 9=ma;n 3t9ues on !      
  foll[+ scre54 ,5l>g$ gr\p+ signs >e n 
  us$ 9 pr9t "<,,gc #e4i4a">            
,l9es #ah & #bd3 ,clos+ scre5 l9es &    
  ,neme? ,code t]m9ators "<,,gc #d &    
  ,,gc #d4a">4                       #de

,l9es #bb & #bc3 ,^! two l9es >e    b#be
  ! 3t9ua;n ( ! previ\s scre54          
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        

_% $gcs 77777777777777777777777777   #bf
@(,a@)@(,b@)                            
    ''' -#1.866666667@)                 
    ''' #1.8         @)@)               
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
    @.<,com;ts@.>                       
,l9e #a3 ,op5+ ,neme? ,code 9dicator &  
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4 ,a top scre5 l9e c appe> 
  on l9e #a :5 a runn+ h1d is n us$     
  "<,,bf">4                             
,l9es #c & #d3 ,? matrix is ! re/ ( !   
  answ] to ! multiplica;n (             
  _% @(,a@)@(,b@) _: & is "r-ju/ifi$ 9  
  pr9t4 ,x 2g9s f\r cells to ! "r ( !   
  2g9n+ ( ! l9e abv "<,,gc #e4b4b">4 ,! 
  matrix is t]m9at$ ) clos+ brackets on 
  ? scre5 align$ ac to ,neme? ,code4    
  ,5l>g$ gr\p+ signs >e n us$ 9 pr9t    
  "<,,gc #e4i4a">4                      
,l9e #e3 ,clos+ scre5 l9e & ,neme? ,code
  t]m9ator "<,,gc #d & ,,gc #d4a">4     
                                     #dg

               ,sample #f        #bg-#bh
                                        
_% $gcs 77777777777777777777777777777777
@,(#1 #2@,) $33o @(,a@)                 
@,(#3 #4@,)                             
                                        
    @,(#1 #2@,)                         
    @,(#3 #4@,)                         
ggggggggggggggggggggggggggggggggggggg _:
                                        
_% $gcs 77777777777777777777777777777777
    @,(#1 #2@,)                         
    @,(#3 #4@,)                         
                                        
@,(#5 #6@,) $33o @(,b@)                 
@,(#7 #8@,)                             
                                        
    @,(#5 #6@,)                         
    @,(#7 #8@,)                         
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
    @.<,com;ts@.>                       
,l9es #b1 #aj1 & #ba3 ,a blank l9e is   
  requir$ by ,,gc #d4c4                 

,l9es #c & #aa3 ,op5+ ,neme?        a#bh
  ,code 9dicators & op5+ scre5 l9es     
  "<,,gc #d & ,,gc #d4a">4              
,l9es #d-#e & #ae-#af3 ,matrices >e     
  transcrib$ & align$ ac to ,neme? ,code
  "<,,gc #e4i"> ,5l>g$ gr\p+ signs >e   
  us$4 ,? spatial >range;t requires a   
  blank l9e 2f & af "<,,gc #e4i4b">4    
,l9es #d & #ae3 ,"r-po9t+ >r[ ) %aft    
  "<,,gc #i">4                          
,l9e #f3 ,! matrices >e spatial &       
  require blank l9es 2f & af except     
  immly foll[+ an op5 scre5 l9e or      
  prec$+ a clos+ scre5 l9e              
  "<,,gc #e4i4b">4                      
,l9es #g-#h3 ,? matrix is ! answ]       
  _% @(,a@) _: & is "r-ju/ifi$ 9 pr9t4  
  ,x 2g9s f\r cells to ! "r ( ! 2g9n+ ( 
  ! l9e abv "<,,gc #e4a4a">4 ,5l>g$     
  gr\p+ signs >e us$ "<,,gc #e4g4b">4   
,l9es #i & #bj3 ,clos+ scre5 l9es &     
  ,neme? ,code t]m9ators "<,,gc #d &    
  ,,gc #d4a">4                          
,l9es #ab & #ac3 ,? matrix is ! answ]   
  _% @(,a@) _: "<rep1t$ f !          #di

  previ\s scre5">4                  b#bh
,l9es #ad & #ag3 ,blank l9es >e requir$ 
  by ,,gc #e4i4b4                       
,l9e #ae3 ,"r-po9t+ >r[ ) %aft          
  "<,,gc #i">4                          
,l9es #ah & #ai3 ,? matrix is ! answ]   
  _% @(,b@) _: & is "r-ju/ifi$ 9 pr9t4  
  ,x 2g9s f\r cells to ! "r ( ! 2g9n+ ( 
  ! l9e abv "<,,gc #e4b4b">4 ,5l>g$     
  gr\p+ signs >e us$ "<,,gc #e4i4b">    
,l9e #bj3 ,clos+ scre5 l9e & ,neme?     
  t]m9ator "<,,gc #d4a">4               
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        

      @.<,! bottom "p ( !            #bi
    left-ju/ifi$ matrix f ! previ\s     
    scre5 is %[n at ! top ( ! pr9t      
    scre51 b is omitt$ 9 brl4@.>        
                                        
_% $gcs 77777777777777777777777777777777
    @,(#5 #6@,)                         
    @,(#7 #8@,)                         
                                        
augment (@(,a@), @(,b@))                
                                        
    @,(#1 #2 #5 #6@,)                   
    @,(#3 #4 #7 #8@,)                   
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
    @.<,com;ts@.>                       
,l9es #a-#d3 ,? is a transcrib]'s note  
  expla9+ ! omis.n ( ! "pial matrix at !
  top ( ! scre54                        
,l9e #e3 ,a blank l9e is requir$ by     
  ,,gc #d4c                             
,l9e #f3 ,op5+ ,neme? ,code 9dicator &  
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4                       #ea

,l9es #g & #h3 ,? matrix is !       a#bi
  answ] _% @(,b@) _: "<rep1t$ f !       
  previ\s scre5"> & is "r-ju/ifi$ 9     
  pr9t4 ,x 2g9s f\r cells to ! "r ( !   
  2g9n+ ( ! l9e abv "<,,gc #e4b4b">4    
  ,5l>g$ gr\p+ signs >e us$             
  "<,,gc #e4i4b">4                      
,l9es #i & #aa3 ,! matrices >e spatial &
  require blank l9es 2f & af except     
  immly foll[+ an op5 scre5 l9e or      
  prec$+ a clos+ scre5 l9e              
  "<,,gc #e4i4b">4                      
,l9e #aj3 ,reta9 pr9t capitaliza;n      
  "<,,gc #e4d"> & use no 3trac;ns )9 a  
  scre5 "<,,gc #e4a">4 8aug;t0 is a     
  comm& "<simil> to a func;n"> &        
  requires a space foll[+ x4            
,l9es #ab & #ac3 ,? matrix is ! answ] to
  _% 8augment (@(,a@), @(,b@))_0 _:1 is 
  "r-ju/ifi$ 9 pr9t & 2g9s f\r cells to 
  ! "r ( ! 2g9n+ ( ! l9e abv            
  "<,,gc #e4b4b">4                      
,l9e #ad3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          

               ,sample #g        #cj-#ca
                                        
_% $gcs #1 77777777777777777777777777777
,y1 _.k #1000000(0.999                  
#9)_<(12,x)                             
,y2 .k                                  
,y3 .k                                  
,y4 .k                                  
,y5 .k                                  
,y6 .k                                  
,y7 .k                                  
ggggggggggggggggggggggggggggggggggggg _:
                                        
_% $gcs #2 77777777777777777777777777777
,,table ,,setup                         
  ,tbl,min .k #0                        
  .,d,tbl .k #1                         
,indpnt3 _,auto ,ask                    
,depend3 _,auto ,ask                    
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
    @.<,com;ts@.>                       
,l9es #c & #ad3 ,op5+ ,neme? ,code      
  9dicators & op5+ scre5 l9es        #ec

  "<,,gc #d & ,,gc #d4a">4 ,scre5   a#ca
  numb] is 9s]t$ 9to ! op5+ scre5 l9e4  
,l9e #d3 ,! equal sign is hi<li<t$ 9 !  
  calculator scre5 9 pr9t4 ,hi<li<t+ is 
  t]m9at$ by a space "<,,gc #e4c">      
,l9es #d & #f-#aa3 ,id5tifi]s >e        
  transcrib$ z subscripts "<,,gc #f4a">4
,l9es #d & #e3 ,/>t & /op text l9es z !y
  >e %[n 9 pr9t "<,,gc #e4b">           
,l9e #e3 ,! num]ic 9dicator is requir$  
  at ! 2g9n+ ( a brl l9e "<,,nc">4 ,ma? 
  c>et "<,,gc #i">                      
,l9es #f-#aa3 ,! full cell omis.n symbol
  is n us$ to replace a blank space %[n 
  9 pr9t "<,,gc #e4d">4                 
,l9es #ab & #bj3 ,clos+ scre5 l9e &     
  ,neme? ,code t]m9ator "<,,gc #d &     
  ,,gc #d4a">4                          
,l9e #ac3 ,a blank l9e is requir$ by    
  ,,gc #d4c                             
,l9e #ae3 ,reta9 pr9t capitaliza;n      
  "<,,gc #e4d"> & use no 3trac;ns )9 a  
  scre5 "<,,gc #e4a">4                  
,l9e #ag3 ,upp]case ,greek delta        
,l9es #ah & #ai3 ,! ^w 8,auto0 is       

  hi<li<t$ on bo? l9es              b#ca
  "<,,gc #e4c">                         
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                     #ee

_% $gcs #3 77777777777777777777777   #cb
;,x  ,y1                                
"33  "333333                            
_#0  #1,e"6                             
#1   #998801                            
#2   #997603                            
#3   #996406                            
#4   #995211                            
#5   #994018                            
#6   #992826                            
3333333333333333333333333333333333333333
,x .k #0                                
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
    @.<,com;ts@.>                       
,l9e #a3 ,op5+ ,neme? ,code 9dicator &  
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4 ,a top box l9e c appe> on
  l9e #a :5 a runn+ h1d is n us$        
  "<,,bf">4 ,scre5 numb] is 9s]t$ 9to ! 
  op5+ scre5 l9e4                       
,l9e #b3 ,id5tifi]s >e transcrib$ z     
  subscripts "<,,gc #f4a">              
,l9e #d3 ,! numb] #j is hi<li<t$ 9 !    

  calculator scre5 9 pr9t4          a#cb
  ,hi<li<t+ is t]m9at$ by a space       
  "<,,gc #e4c">                         
,l9es #b-#ab3 ,! table is =matt$ ac to  
  brl =mats guidel9es4                  
,l9es #d-#aj3 ,! numb]s 9 ! second      
  column >e left-ju/ifi$ z 9 pr9t4      
,l9e #aa3 ,a sep>a;n l9e is 9s]t$ 2t !  
  table & ! f9al expres.n1 z %[n 9 pr9t4
  ,! sep>a;n l9e is ! wid? ( ! brl page 
  "<,,gc #e4h">                         
,l9e #ac3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                     #eg

               ,sample #h        #cc-#cd
                                        
  ,if y >e us+ a ,,ti-#hc calculator1 ! 
/eps >e simil>4 ,! scre5 by scre5 4plays
>e %nn 2l4 ,a3ess ;n us+ !              
_% $k;,x, ;,t, .?, ;n] _: key4          
                                        
_% $gcs #1 77777777777777777777777777777
_,normal ,sci ,eng                      
_,float #0 #1 #2 #3 #4 #5 #6 #7 #8 #9   
_,radian ,degree                        
_,func ,par ,pol ,seq                   
_,connected ,dot                        
_,sequential ,simul                     
_,real a+bi re_<.?i                     
_,full ,horiz ;,g-;,t                   
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
    @.<,com;ts@.>                       
,l9e #f3 ,use ! calculator key/roke     
  9dicator to op5 a key/roke & ! t]m9a;n
  9dicator to close4 ,? 3/ruc;n m/ 2    
  transcrib$ )9 ! ,neme? swit*es        
  "<,,gc #b4a1 #b4b & #b4c">4           

,l9e #g3 ,a blank l9e is requir$    a#cd
  by ,,gc #d4c4                         
,l9e #h3 ,op5+ ,neme? ,code 9dicator &  
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4 ,scre5 numb] 9 ,neme?    
  ,code is 9s]t$ 9 ! op5+ scre5 l9e     
  foll[+ ! scre5 9dicator4              
,l9es #i-#af3 ,hi<li<t$ t]ms or numb]s  
  on ! scre5 >e 9dicat$ by dots #def4   
  "<,,gc #e4b">                         
,l9e #aj3 ,! digits #j1 #a1 #b1 etc4 >e 
  spac$ f ea* o!r 2c ea* c 2 hi<li<t$   
  sep>ately z a *oice by ! us]4         
,l9es #i & #ab-#ae3 ,no 3trac;ns >e us$ 
  9 ^ws )9 a calculator scre5           
  "<,,gc #e4a">                         
,l9e #ae3 ,ma? c>et & ,greek l[]-case   
  !ta4                                  
,l9e #af3 ,lr 9dicators >e ne$$ on ! lrs
  ;,g-;,t on ei side ( ! hyph5 z requir$
  by ! ,neme? ,code ) reg>d to s+le lrs4
,l9e #ag3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          
                                     #ei

_% $gcs #2 77777777777777777777777   #ce
  ,plot;1 ,plot;2 ,plot;3               
  n,min .k #1                           
$_* u(n) _.k #2@#n                      
  u(n,min) _.k                          
$_* v(n) .k                             
  v(n,min) .k                           
$_* w(n) .k                             
  w(n,min) .k                           
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
    @.<,com;ts@.>                       
,l9e #a3 ,op5+ ,neme? ,code 9dicator &  
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4 ,scre5 numb] 9 ,neme?    
  ,code is 9s]t$ 9 ! op5+ scre5 l9e     
  foll[+ ! scre5 9dicator4              
,l9e #b3 ,! id5tify+ numb]s on .1,plot 9
  ! scre5 >e %[n z subscripts4 ,!       
  subscript 9dicator m/ 2 us$ on a      
  subscript to a ^w "<,,gc #f4a">       
,l9es #b1 #c1 #e1 #g & #i3 ,l9es t >e   
  9d5t$ on ! scre5 >e 9d5t$ two cells to
  ! "r ( ! 2g9n+ ( ! previ\s pr9t l9e   

  "<,,gc #e4b4a">                   a#ce
,l9e #d3 ,! equal sign is hi<li<t$      
  "<,,gc #e4c">                         
,l9es #d1 #f & #h3 ,l9es 2g9 9 cell #a )
  ! dott$ l9e graph /yle symbol4 ,?     
  symbol m/ 2 foll[$ by a space         
  "<,,gc #h4d">                         
,l9e #e3 ,! equal sign is hi<li<t$      
  "<,,gc #e4b">4                        
,l9es #e-#i3 ,! full cell omis.n symbol 
  is n us$ to replace a blank space %[n 
  9 pr9t "<,,gc #e4e">4                 
,l9e #aj3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                     #fa

               ,sample #i        #cf-#cg
                                        
#a4 ,press _% $k,,mode]_4 ,',press      
  $k$_%o]$k$_%o]$k$_%o]$k$_o]$k,,enter] 
  _: to select _% ,'_ ,par _,' _: mode4 
  ,press                                
  _% $k_%o]$k$_%o]$k$_o]$k,,enter] _: to
  select _% ,'_ ,simul _,' _: =         
  simultane\s graph+ ( all ?ree         
  p>ametric equa;ns 9 ? example4        
                                        
_% $gcs 77777777777777777777777777777777
_,,normal ,,sci ,,eng                   
_,,float #0 #1 #2 #3 #4 #5 #6 #7 #8 #9  
_,,radian ,,degree                      
,,func _,,par ,,pol ,,seq               
_,,connected ,,dot                      
,,sequential _,,simul                   
_,,real a+bi re_<.?i                    
_,,full ,,horiz ;,g-;,t                 
           $%33o ,,next $%33o           
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
                                        

    @.<,com;ts@.>                    #ch
,l9e #c3 ,use ! calculator key/roke     
  9dicator to op5 a key/roke & ! t]m9a;n
  9dicator to close4 ,? 3/ruc;n m/ 2    
  transcrib$ )9 ! ,neme? swit*es        
  "<,,gc #b4a1 ,,gc #b4b & ,,gc #b4c">4 
  ,! s+le-^w swit* 9dicator 0 us$ 2f    
  .1,press to avoid swit*es4            
,l9e #d3 ,no spaces >e left 2t key/rokes
  or 2t items )9 key/rokes1 un.s !y >e  
  sep>at$ by commas 9 pr9t              
  "<,,gc #b4f">4 ,d[n-po9t+ >r[h1ds &   
  "r-po9t+ >r[h1ds 9 key/rokes          
  "<,,gc #h4b">4                        
,l9es #e & #h3 ^1,par & ^1,simul >e     
  emphasiz$ & replicate a ^w appe>+ 9 a 
  scre54 ,no 3trac;ns >e us$ & !        
  emphasis is reta9$ "<,,gc #c">4       
,l9e #g3 ,ev5 ?\< "s key/rokes wd h fit 
  on ,l9e #f1 !y 7 all plac$ tgr on l9e 
  #g "<,,gc #b4f4b">4 ,d[n-po9t+ >r[h1ds
  & "r-po9t+ >r[h1ds 9 key/rokes        
  "<,,gc #h4b">4                        
,l9es #aa & #bc3 ,a blank is requir$ by 
  ,,gc #d4c                          #fc

,l9e #ab3 ,op5+ ,neme? ,code        a#ch
  9dicator & op5+ scre5 l9e "<,,gc #d & 
  ,,gc #d4a">4                          
,l9es #ac-#bj3 ,hi<li<t$ t]ms or numb]s 
  on ! scre5 >e 9dicat$ by dots #def4   
  "<,,gc #e4b">                         
,l9e #ad3 ,! digits #j1 #a1 #b1 etc41 >e
  spac$ f ea* o!r 2c ea* c 2 hi<li<t$   
  sep>ately z a *oice by ! us]4         
,l9es #ac & #af-#ai3 ,no 3trac;ns >e us$
  9 ^ws )9 a calculator scre5           
  "<,,gc #e4a">                         
,l9e #ai3 ,ma? c>et & ,greek l[]-case   
  !ta4                                  
,l9e #bj3 ,lr 9dicators >e ne$$ on ! lrs
  ;,g-;,t on ei side ( ! hyph5 z requir$
  by ! ,neme? ,code ) reg>d to s+le lrs4
,l9e #ba3 ,! ^w 8,,next0 & ! d[n-po9t+  
  >r[s ) %afts "<,,nc"> >e c5t]$ z 9    
  pr9t4                                 
,l9e #bb3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          
                                        
                                        

#b4 ,press _% $k$_%o]$k$_%o]         #ci
  $k$_%o]$k$_%o]$k$_%o]$k$_%o]$k$_o]    
  $k,,enter] _: to g to ! ,=mat ,graph  
  scre54 ,press _%                      
  $k$_%o]$k$_%o]$k$_%o]$k$_o]$k,,enter] 
  _: to select _% ,'_ ,axes,off1 _,' _: 
  : turns (f ! axes4                    
                                        
_% $gcs 77777777777777777777777777777777
           $<33o ,,back $<33o           
_,,mathprint ,,classic                  
_;n_/;d ,un_/d                          
,,answers3 _,,auto ,,dec ,,frac         
,,go ,,to ,,format ,,graph3 _,,no ,,yes 
,,stat ,,diagnostics3 _,,off ,,on       
,,stat ,,wizards3 _,,on ,,off           
,,set ,,clock _#09_/02_/10              
  _#10_3#41 _,,am                       
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
    @.<,com;ts@.>                       
,l9es #a-#c3 ,use ! calculator key/roke 
  9dicator to op5 a key/roke & ! t]m9a;n
  9dicator to close4 ,? 3/ruc;n m/   #fe

  2 transcrib$ )9 ! ,neme?          a#ci
  swit*es "<,,gc #b4a1 ,,gc #b4b &      
  ,,gc #b4c">4 ,d[n-po9t+ >r[h1ds &     
  "r-po9t+ >r[h1ds 9 key/rokes          
  "<,,gc #h4b">4 ,use no 3trac;ns 9 ^ws 
  )9 key/roke 9dicators "<,,gc #b4e">4  
,l9e #f3 ,reta9 ! emphasis on           
  ^1,axes,off & use no 3trac;ns4 ,! ^w  
  is replicat$ 9 a lat] scre54          
  "<,,gc #c">                           
,l9e #h3 ,a blank l9e is requir$ by     
  ,,gc #d4c4                            
,l9e #i3 ,op5+ ,neme? ,code 9dicator &  
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4                          
,l9e #aj3 ,! ^w 8,,back0 & ! up->r[s )  
  %afts reta9 _! c5t]$ posi;n4          
,l9es #aa-#ah3 ,hi<li<t$ t]ms or numb]s 
  on ! scre5 >e 9dicat$ by dots #def4   
  "<,,gc #e4b"> ,reta9 pr9t capitaliza;n
  "<,,gc #e4d"> & use no 3trac;ns )9 a  
  scre5 "<,,gc #e4a">4                  
,l9e #ah3 ,? l9e is ! runov] ( ,l9e #ag4
  ,runov]s >e 9d5t$ "o cell to ! "r ( ! 
  2g9n+ ( ! previ\s l9e "<,,gc #e4a4d">4

,l9e #ai3 ,clos+ scre5 l9e &        b#ci
  ,neme? ,code t]m9ator "<,,gc #d &     
  ,,gc #d4a">4                          
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                     #fg

_% $gcs 77777777777777777777777777   #dj
_,rect,g,c ,pol>,g,c                    
_,coord,on ,coord,off                   
_,grid,off ,grid,on                     
,axes,on _,axes,off                     
_,label,off ,label,on                   
_,expr,on ,expr,off                     
ggggggggggggggggggggggggggggggggggggg _:
                                        
#c4 ,press _% $k,y.k]_4 ,',press        
  #30$k;,x, ;,t, .?, ;n]$k,,cos]25$k2nd]
  @(,,angle@)1 _: "<to select           
  _% ^.* _:"> _% $k)]$k,,enter] _: to   
  def9e _% ,'_ ,x"1,t _,' _: 9 t]ms (   
  _% _;,t _:4                           
#d4 ,press _% #30$k;,x, ;,t, .?, ;n]    
  $k,,sin]25$k2nd]@(,,angle@)1$k)]$k-]  
  $k,,alpha]@(,f"1@)1 _: "<to select    
  _% ;n_/;d _:"> _% #9.8$k$_o]2$k$_o]   
  $k;,x, ;,t, .?, ;n]$kx^2"]$k,,enter]  
  _: to def9e _% ,'l ,y"1,t _,' _:4     
                                        
                                        
                                        
                                        

    @.<,com;ts@.>                    #da
,l9e #a3 ,op5+ ,neme? ,code 9dicator &  
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4 ,a top box l9e c appe> on
  l9e #a :5 a runn+ h1d is n us$        
  "<,,bf">4                             
,l9es #b-#g3 ,hi<li<t$ t]ms or numb]s on
  ! scre5 >e 9dicat$ by dots #def4      
  "<,,gc #e4c"> ,reta9 pr9t capitaliza;n
  "<,,gc #e4d"> & use no 3trac;ns )9 a  
  scre5 "<,,gc #e4a">4                  
,l9e #h3 ,clos+ scre5 l9e & ,neme? ,code
  t]m9ator "<,,gc #d & ,,gc #d4a">4     
,l9e #i3 ,a blank l9e is requir$ by     
  ,,gc #d4c4                            
,l9e #aj3 ,use ! calculator key/roke    
  9dicator to op5 a key/roke & ! t]m9a;n
  9dicator to close4 ,? 3/ruc;n m/ 2    
  transcrib$ )9 ! ,neme? swit*es        
  "<,,gc #b4a1 ,,gc #b4b & ,,gc #b4c">4 
  ,= ! key/roke t %[s _% ,y.k _:1 no    
  space is left 2f or af ! equal sign   
  "<,,gc #f4b"> ,! s+le-^w swit*        
  9dicator 0 us$ 2f ,press to avoid     
  swit*es4                           #fi

,l9e #aa3 ,no spaces >e left 2t     a#da
  key/rokes or 2t items )9 key/rokes    
  un.s !y >e sep>at$ by commas          
  "<,,gc #b4f">4                        
,l9e #ab3 ,! ^w ,,angle 9 brackets is a 
  key/roke s x is unspac$ f ! key/roke  
  2f x & ! numb] #a4                    
,l9es #ab-#ac3 ,! explanatory phrase 9  
  p>5!ses is transcrib$ 9 ,,ueb b !     
  degree sign _% (.*) _: is ma!matical &
  m/ 2 )9 ,neme? swit*es4               
,l9es #ad-#ae3 _% ,'_ ,x"1,t _,' &      
  _;,t _: >e emphasiz$ 9 pr9t & >e      
  replicat$ 9 a scre5 "<,,gc #c">4      
  _% ,'_ #1,t _,' _: is a subscript (   
  _% _;,x _:4                           
,l9e #ah-#ai3 ,! explanatory phrase 9   
  p>5!ses is transcrib$ 9 ,,ueb b       
  _% ;n_/;d _: is ma!matical & m/ 2 )9  
  ,neme? swit*es4                       
,l9e #ba3 _% ,'_ ,y"1,t _,' _: is       
  emphasiz$ 9 pr9t & is replicat$ 9 a   
  scre5 "<,,gc #c">4 _% ,'_ #1,t _,' _: 
  is a subscript ( _% _;,y _:4          
                                        

_% $gcs 77777777777777777777777777   #db
  ,plot;1 ,plot;2 ,plot;3               
$_** ,x;1,t .k #30,tcos (25^.*")        
3333333333333333333333333333333333333333
  ,y;1,t _.k #30,tsin (25^.*")          
      $o                                
                                        
cccccccccccccccccccccccccccccccccccccccc
$_** ,x;2,t .k                          
  ,y;2,t .k                             
$_** ,x;3,t .k                          
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
    @.<,com;ts@.>                       
,l9e #a3 ,op5+ ,neme? ,code 9dicator &  
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4 ,a top box l9e c appe> on
  l9e #a :5 a runn+ h1d is n us$        
  "<,,bf">4                             
,l9e #b3 ,! id5tify+ numb]s on .1,plot 9
  ! scre5 >e %[n z subscripts4 ,!       
  subscript 9dicator m/ 2 us$ on a      
  subscript to a ^w "<,,gc #f4a">       
,l9es #b1 #e & #aj3 ,l9es 9d5t$ on   #ga

  ! scre5 >e two cells to ! "r (    a#db
  ! 2g9n+ ( ! previ\s l9e               
  "<,,gc #e4b4a">                       
,l9es #c1 #i & #aa3 ,l9e /yles >e at !  
  left m>g9 & >e spac$ f ! expres.ns t  
  foll[ "<,,gc #h4d">                   
,l9es #d & #h3 ,horizontal l9es sep>at+ 
  sec;ns ( ! scre5 run ! wid? ( ! page  
  "<,,gc #e4h">4                        
,l9e #f3 ,"r-po9t+ >r[h1d is left-      
  ju/ifi$ 9 ! pr9t scre54 ,transcrip;n  
  2g9s f\r cells to ! "r ( ! 2g9n+ ( !  
  l9e abv "<,,gc #e4b4b">4              
,l9e #g3 ,blank l9e %[n 9 pr9t          
  "<,,gc #f4c">4                        
,l9es #i-#aa3 ,symbols >e n 9s]t$ to    
  replace blank spaces 9 pr9t           
  "<,,gc #e4e">4                        
,l9e #ab3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          
                                        
                                        
                                        
                                        

              ,sample #aj        #dc-#dd
                                        
    ,9 ,ex]cises #ea-#ed1 use !         
  _% $k,y.k] _: scre5 to write ! equa;n 
  2+ solv$4 ,!n use ! table to solve !  
  equa;n4                               
      @.<,9 ea* problem1 a second       
    calculator scre5 ov]laps ! f/4 ,only
    expos$ l9es ( ! f/ scre5s >e        
    transcrib$4 ,! 9complete scre5 is   
    %[n f/4@.>                          
#ea4                                    
                                        
_% $gcs 77777777777777777777777777777777
  ,plot;1 ,plot;2 ,plot;3               
$_** ,y1 _.k #3(,x-4)                   
$_** ,y2 _.k #3(2-2,x)                  
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
    @.<,com;ts@.>                       
,l9e #d3 ,= ! key/roke _% ,y.k _:1 no   
  space is left 2f or af ! equal sign   
  "<,,gc #f4b">4                        
,l9es #g-#aa3 ,transcrib]'s note     #gc

  expla9+ ! ov]lapp+ calculator     a#dd
  scre5s4                               
,l9e #ac3 ,a blank l9e is requir$ by    
  ,,gc #d4c4                            
,l9e #ad3 ,op5+ ,neme? ,code 9dicator & 
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4                          
,l9e #ae3 ,! id5tify+ numb]s on .1,plot 
  9 ! scre5 >e %[n z subscripts4 ,!     
  subscript 9dicator m/ 2 us$ on a      
  subscript to a ^w "<,,gc #f4a">       
,l9es #af & #ag3 ,l9e /yles >e at ! left
  m>g9 & >e spac$ f ! expres.ns t foll[ 
  "<,,gc #h4d">4 ,! equal signs >e      
  hi<li<t$ 9 pr9t "<,,gc #e4c">4        
,l9e #ah3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          
                                        
                                        
                                        
                                        
                                        
                                        
                                        

_% $gcs 77777777777777777777777777   #de
;,x   ,y1   ,y2                         
"333  "333  "333                        
_-#3  -#21  #24                         
-#2   -#18  #18                         
-#1   -#15  #12                         
#0    -#12  #6                          
#1    -#9   #0                          
#2    -#6   -#6                         
#3    -#3   -#12                        
3333333333333333333333333333333333333333
,x .k -#3                               
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
    @.<,com;ts@.>                       
,l9e #a3 ,op5+ ,neme? ,code 9dicator &  
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4 ,a top box l9e c appe> on
  l9e #a :5 a runn+ h1d is n us$        
  "<,,bf">4                             
,l9e #b3 ,! id5tify+ numb]s on ! .2,ys 9
  ! scre5 >e %[n z subscripts           
  "<,,gc #f4a">4                        
,l9e #d3 ,! _% -#3 _: is hi<li<t$    #ge

  "<,,gc #e4b">4                    a#de
,l9es #d-#aj3 ,5tries >e left-ju/ifi$ 9 
  ! columns z 9 pr9t4                   
,l9e #aa3 ,! l9e is ! wid? ( ! brl page 
  "<,,gc #e4h">4                        
,l9e #ac3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        

              ,sample #aa        #df-#dg
  ,! horizontal compon5t vector is def9$
  by _% ,'_ ,x;3,t _,' ,'&              
  ,'_ ,y;3,t_4 _,' _:                   
#f4 ,press _% $k,,vars]$k$_o]2 _:1 & !n 
  press _% #1$k,,enter] _: to def9e     
  _% ,'_ ,x;3,t_4 _,' ,',press          
  #0$k,,enter] _: to def9e              
  _% ,'_ ,y;3,t _,' _:4                 
                                        
_% $gcs 77777777777777777777777777777777
  ,plot;1 ,plot;2 ,plot;3               
  ,y;1,t _.k #30,tsin (25^.*")          
-#9.8_/2,t^2                            
$_** ,x;2,t _.k #0                      
  ,y;2,t _.k ,y;1,t                     
$_** ,x;3,t _.k ,x;1,t                  
  ,y;3,t _.k #0                         
$_** ,x;4,t .k                          
ggggggggggggggggggggggggggggggggggggg _:
                                        
#g4 ,press                              
  _% $k$_[]$k$_[]$k$_<o]$k,,enter] _: to
  *ange ! graph /yle to _% $_*** ,'=    
  ,'_ ,x;3,t _,' ,'&                 #gg

                                     #dh
                                        
    @.<,com;ts@.>                       
,l9e #a3 ,? sample uses a runn+ h1d4    
,l9es #c & #d3 ,! id5tifi]1 #c,t1 is a  
  subscript b _c 2 %[n z s* on a graph+ 
  calculator4 ,9 brl s* 9dicators w 2   
  %[n z subscripts "<,,gc #f4a">4       
,l9e #c3 ,! s+le-^w swit* 9dicator 0 us$
  2f .1& to avoid swit*es4              
,l9e #e3 ,use ! calculator key/roke     
  9dicator to op5 a key/roke & ! t]m9a;n
  9dicator to close4 ,? 3/ruc;n m/ 2    
  transcrib$ )9 ! ,neme? swit*es        
  "<,,gc #b4a1 ,,gc #b4b & ,,gc #b4c">4 
  ,no spaces >e left 2t key/rokes       
  "<,,gc #b4f">4                        
,l9e #g3 ,reta9 emphasis on             
  _% ,'_ ,x"3,t _,'_4 ,',%[             
  ,'_ #3,t _,' _: z a subscript to      
  _% _;,x _: "<,,gc #c">4 ,! s+le-^w    
  swit* 9dicator 0 us$ 2f .1,press to   
  avoid swit*es4                        
,l9e #i3 ,reta9 emphasis on             
  _% ,'_ ,y"3,t _,' _: & %[             

  _% ,'_ #3,t _,' _: z a            a#dh
  subscript "<,,gc #c">4                
,l9e #aj3 ,a blank l9e is requir$ by    
  ,,gc #d4c                             
,l9e #aa3 ,op5+ ,neme? ,code 9dicator & 
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4                          
,l9es #ab1 #ac1 #af & #ah3 ,l9es >e     
  9d5t$ on ! graph+ scre5 two cells to !
  "r ( ! 2g9n+ ( ! l9e abv              
  "<,,gc #e4b4a">4                      
,l9e #ab3 ,! id5tify+ numb]s on .1,plot 
  9 ! scre5 >e %[n z subscripts4 ,!     
  subscript 9dicator m/ 2 us$ on a      
  subscript to a ^w "<,,gc #f4a">       
,l9es #ac & #ae-#ah3 ,equal signs >e    
  hi<li<t$ "<,,gc #e4c">                
,l9es #ae1 #ag1 #ai3 ,graph ,l9e ,/yles 
  >e li/$ 9 ,,gc #h4d4 ,ea* symbol is   
  foll[$ by a blank cell "<,,gc #h4d">4 
,l9e #bj3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          
,l9e #bc3 ,use ! calculator key/roke    
  9dicator to op5 a key/roke & !     #gi

  t]m9a;n 9dicator to close4 ,?     b#dh
  3/ruc;n m/ 2 transcrib$ )9 ! ,neme?   
  swit*es "<,,gc #b4a1 ,,gc #b4b &      
  ,,gc #b4c">4 ,no spaces >e left 2t    
  key/rokes "<,,gc #b4f">4 ,"s ( ^!     
  key/rokes wd h fit on l9e #bb b x is  
  pref]able to keep key/roke 3/ruc;ns on
  "o l9e if possible "<,,gc #b4f4b">4   
,l9e #bd3 ,see ,graph ,l9e ,/yles       
  "<,,gc #h4d">4                        
,l9es #bd & #be3 ,! s+le-^w swit*       
  9dicator 0 us$ 2f .1= & .1& to avoid  
  swit*es4                              
,l9e #be3 ,reta9 emphasis on            
  _% ,'_ ,x"3,t _,' _: "<,,gc #c">4     
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        

              ,sample #aa            #di
  ,'_ y;3,t_4 _,' ,',press              
  $k$_<o]$k,,enter]$k,,enter] _: to     
  *ange ! graph /yle to _% $3.* ,'=     
  ,'_ ,x;2,t _,' ,'& ,'_ ,y;2,t_4 _,'   
  ,',press                              
  $k$_<o]$k,,enter]$k,,enter] _: to     
  *ange ! graph /yle to _% $3.* ,'=     
  ,'_ ,x;1,t _,' ,'& ,'_ ,y;1,t _,' _:4 
  "<,^! key/rokes assume t all graph    
  /yles 7 set to _% $_* _: orig9ally4"> 
                                        
_% $gcs 77777777777777777777777777777777
  ,plot;1 ,plot;2 ,plot;3               
$3.* ,x;1,t _.k #30,tcos (25^.*")       
                                        
  ,y;1,t _.k #30,tsin (25^.*")          
-#9.8_/2,t^2                            
$3.* ,x;2,t _.k #0                      
  ,y;2,t _.k ,y;1,t                     
$_*** ,x;3,t _.k ,x;1,t                 
ggggggggggggggggggggggggggggggggggggg _:
                                        
#h4 ,press _% $k,,window] _:4 ,5t] ^!   
  values = ! w9d[ v>iables4          #ha

                                     #ej
                                        
    @.<,com;ts@.>                       
,l9e #b3 ,reta9 emphasis on             
  _% ,'_ ,y"3,t _,' _: & %[             
  _% ,'_ #3,t _,' _: z a subscript4     
  s+le-^w swit* 9dicator 0 us$ 2f       
  .1,press to avoid swit*es4            
,l9e #c3 ,use ! calculator key/roke     
  9dicator to op5 a key/roke & ! t]m9a;n
  9dicator to close4 ,? 3/ruc;n m/ 2    
  transcrib$ )9 ! ,neme? swit*es        
  "<,,gc #b4a1 ,,gc #b4b & ,,gc #b4c">4 
  ,no spaces >e left 2t key/rokes       
  "<,,gc #b4f">4                        
,l9e #d3 ,graph ,l9e ,/yles >e li/$ 9   
  ,,gc #h4d4 ,! s+le-^w swit* 9dicator 0
  us$ 2f .1=4                           
,l9e #e3 ,reta9 emphasis on             
  _% ,'_ ,x"2,t _,' _:4 ,! s+le-^w swit*
  9dicator 0 us$ 2f .1&4 ,%[            
  _% ,'_ #2,t _,' _: z a subscript to   
  _% _;,x _:4                           
,l9es #f-#i3 ,com;ts = l9es #b-#e apply 
  to l9es #f-#i4                        

,l9e #ab3 ,a blank l9e is requir$   a#ej
  by ,,gc #d4c4                         
,l9e #ac3 ,op5+ ,neme? ,code 9dicator & 
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4                          
,l9e #ad3 ,! id5tify+ numb]s on .1,plot 
  9 ! scre5 >e %[n z subscripts4 ,!     
  subscript 9dicator m/ 2 us$ on a      
  subscript to a ^w "<,,gc #f4a">       
,l9es #ad1 #ag1 & #bj3 ,l9es >e 9d5t$ on
  ! graph+ scre5 two cells to ! "r ( !  
  2g9n+ ( ! l9e abv "<,,gc #e4b4a">4    
,l9e #af3 ,blank l9e %[n 9 pr9t         
  "<,,gc #f4c">4                        
,l9es #ae1 #ai & #ba3 ,graph l9e /yles  
  >e li/$ 9 ,,gc #h4d4 ,ea* symbol is   
  foll[$ by a blank cell "<,,gc #h4d">4 
,l9es #ae1 #ag & #ai-#ba3 ,equal sign is
  hi<li<t$ "<,,gc #e4c">                
,l9es #ag-#ah3 ,/>t & /op text l9es z !y
  >e %[n 9 pr9t "<,,gc #e4b">           
,l9e #bb3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          
,l9e #bc3 ,a blank l9e is requir$    #hc

  by ,,gc #d4c4                     b#ej
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        

              ,sample #aa            #ea
    _%                                  
    ,tmin .k #0                         
    ,tmax .k #5                         
    ,tstep .k #.1                       
    ,xmin .k -#10                       
    ,xmax .k #100                       
    ,xscl .k #50                        
    ,ymin .k -#5                        
    ,ymax .k #15                        
    ,yscl .k #10 _:                     
                                        
_% $gcs 77777777777777777777777777777777
,,window                                
$<33o ,tstep .k #.1                     
  ,xmin .k -#10                         
  ,xmax .k #100                         
  ,xscl .k #50                          
  ,ymin .k -#5                          
  ,ymax .k #15                          
  ,yscl .k #10                          
ggggggggggggggggggggggggggggggggggggg _:
                                        
#i4 ,press _% $k2nd]@(,,format@)        
  $k$_%o]$k$_%o]$k$_%o]$k$_o]        #he

                                    a#ea
                                        
    @.<,com;ts@.>                       
,l9es #c-#aa3 ,! v>iables >e 4play$ to  
  itemiz$ mat]ial4 ,no blank l9e is     
  requir$ prec$+ ! li/4                 
,l9e #ac3 ,op5+ ,neme? ,code 9dicator & 
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4                          
,l9e #ad3 ,reta9 pr9t capitaliza;n      
  "<,,gc #e4d"> & use no 3trac;ns )9 a  
  scre5 "<,,gc #e4a">4                  
,l9e #ae3 ,up-po9t+ >r[ ) %aft          
  "<,,gc #i">                           
,l9es #af-#ba3 ,l9es >e 9d5t$ on !      
  graph+ scre5 two cells to ! "r ( !    
  2g9n+ ( ! l9e abv "<,,gc #e4b4a">4    
,l9e #bb3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          
,l9e #bc3 ,a blank l9e is requir$ by    
  ,,gc #d4c4                            
,l9e #bd3 _% $k,,format] _: is a        
  key/roke & is unspac$ f keys prec$+ & 
  foll[+ x4                             

,l9es #bd-#be3 ,use ! calculator    b#ea
  key/roke 9dicator to op5 a key/roke & 
  ! t]m9a;n 9dicator to close4 ,?       
  3/ruc;n m/ 2 transcrib$ )9 ! ,neme?   
  swit*es "<,,gc #b4a1 ,,gc #b4b &      
  ,,gc #b4c">4 ,no spaces >e left 2t    
  key/rokes "<,,gc #b4f">4              
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                     #hg

              ,sample #aa            #eb
  $k,,enter] _: to set                  
  _% ,'_ ,axes,off _,' _:1 : turns (f ! 
  axes4                                 
                                        
_% $gcs 77777777777777777777777777777777
_,rect,g,c ,polar,g,c                   
_,coord,on ,coord,off                   
_,grid,off ,grid,on                     
,axes,on _,axes,off                     
_,label,off ,label,on                   
_,expr,on ,expr,off                     
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
    @.<,com;ts@.>                       
,l9e #b3 ^1,axes,off appe>s 9 text      
  surr.d+ a scre54 ,emphasis m/ 2 reta9$
  & transcrip;n m/ 2 )\t 3trac;ns       
  "<,,gc #c">4                          
,l9e #e3 ,a blank l9e is requir$ by     
  ,,gc #d4c4                            
,l9e #f3 ,op5+ ,neme? ,code 9dicator &  
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4                          

,l9es #g-#ab3 ,hi<li<t$ t]ms or     a#eb
  numb]s on ! scre5 >e 9dicat$ by dots  
  #def4 "<,,gc #e4c"> ,reta9 pr9t       
  capitaliza;n "<,,gc #e4d"> & use no   
  3trac;ns )9 a scre5 "<,,gc #e4a">4    
,l9e #ac3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                     #hi

              ,sample #ab        #ec-#ed
                                        
  ,to def9e a plot1 foll[ ^! /eps4      
                                        
#a4 ,press                              
  _% $k2nd]@(,,stat ,,plot@) _:4 ,!     
  ,,stat ,,plots m5u is 4play$ ) !      
  curr5t plot def9i;ns4                 
                                        
_% $gcs 77777777777777777777777777777777
_,,stat _,,plots                        
_#1_3 ,plot;1 ''' ,off                  
  .(scatter plot.) ,l1 ,l2 $4           
#2_3 ,plot;2 ''' ,off                   
  .(scatter plot.) ,l1 ,l2 $4           
#3_4 ,plot;3 ''' ,off                   
  .(scatter plot.) ,l1 ,l2 $4           
#4 $%33o ,plots,off                     
ggggggggggggggggggggggggggggggggggggg _:
                                        
#b4 ,select ! plot y want to use4 ,! /at
  plot $itor is 4play$ = ! plot y       
  select$4                              
                                        
                                        

    @.<,com;ts@.>                   a#ed
,l9e #f3 ,use ! calculator key/roke     
  9dicator to op5 a key/roke & ! t]m9a;n
  9dicator to close4 ,? 3/ruc;n m/ 2    
  transcrib$ )9 ! ,neme? ,code swit*es  
  "<,,gc #b4a1 ,,gc #b4b & ,,gc #b4c">4 
  ,! ^ws ,,/at ,,plot 9 brackets is a   
  key/roke s x is unspac$ f ! key/roke  
  2f x4 ,capitaliza;n is reta9$ & no    
  3trac;ns >e us$ "<,,gc #b4e &         
  ,,gc #b4f">                           
,l9e #g3 ,! ^ws .1,,/at .1,,plots >e    
  transcrib$ uncontract$ z !y w appe> 9 
  ! scre5 "<,,gc #c & ,,gc #e4a">       
,l9e #aj3 ,op5+ ,neme? ,code 9dicator & 
  op5+ scre5 l9e "<,,gc #d &            
  ,,gc #d4a">4                          
,l9es #aa & #ab3 ,hi<li<t$ t]ms or      
  numb]s on ! scre5 >e 9dicat$ by dots  
  #def "<,,gc #e4c">4 ,reta9 pr9t       
  capitaliza;n "<,,gc #e4d">4           
,l9es #ab1 #ad & #af3 ,! id5tify+ numb]s
  = .1,plot >e subscripts "<,,gc #f4a"> 
,l9es #ac1 #ae & #ag3 ,l9es 9d5t$ on !  
  graph+ scre5 >e two cells to !     #ia

  "r ( ! 2g9n+ ( ! previ\s l9e      b#ed
  "<,,gc #e4b4a">4 ,! plot /yle is "nd  
  )9 braces "<,,gc #h4e">               
,l9e #ah3 ,d[n-po9t+ >r[ ) %aft         
  "<,,gc #i">4 ,foll[ capitaliza;n (    
  text & use no 3trac;ns )9 scre5       
  "<,,gc #e4d & ,,gc #e4a">             
,l9e #ai3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          
,l9e #bj3 ,a blank l9e is requir$ by    
  ,,gc #d4c4                            
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        

      @.<,! plot *oices %[n z        #ee
    icons 9 pr9t >e li/$ 9 ! scre5      
    foll[+ ! ^w 8,type0@.>              
                                        
_% $gcs 77777777777777777777777777777777
_,plot;1 ,plot;2 ,plot;3                
,on _,off                               
,type3                                  
 _.(scatter.)                           
 .(xy,line.)                            
 .(,histogram.)                         
 .(,mod,boxplot.)                       
 .(,boxplot.)                           
 .(,norm,prob,plot.)                    
,xlist3 ,l1                             
,ylist3 ,l2                             
,mark3 _$4 + *                          
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        
    @.<,com;ts@.>                       
,l9es #a-#c3 ,transcrib]'s note expla9+ 
  use ( ^ws to describe ! icons4        
,l9e #d3 ,a blank l9e is requir$ by     
  ,,gc #d4c4                         #ic

,l9e #e3 ,op5+ ,neme? ,code         a#ee
  9dicator & op5+ scre5 l9e "<,,gc #d & 
  ,,gc #d4a">4                          
,l9e #f3 ,! id5tify+ numb]s on .1,plot 9
  ! scre5 >e %[n z subscripts4 ,!       
  subscript 9dicator m/ 2 us$ on a      
  subscript to a ^w "<,,gc #f4a">       
,l9es #f1 #g1 #i & #ag3 ,hi<li<t$ items 
  on ! scre5 >e 9dicat$ by dots #def4   
  "<,,gc #e4c">                         
,l9es #i-#ad3 ,! plot types >e "nd r ?an
  drawn4 ,"ns ( ^! plot types 7 f.d 9 ! 
  manual = ! graph+ calculator          
  "<,,gc #h4e"> ,! li/ is transcrib$ 9  
  cell #b z a runov] to .1,type         
  "<,,gc #e4b4e"> ,! "ns ( ^! types >e  
  %[n 9 braces4                         
,l9es #i & #ae3 ,blank l9es normally    
  requir$ = a li/ >e n 9s]t$ 9 a graph+ 
  calculator scre5 un.s !y >e %[n 9 pr9t
  "<,,gc #f4c">4                        
,l9e #ah3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          
                                        

              ,sample #ac        #ef-#eg
                                        
  .1,solu;n3                            
                                        
    ,key/rokes _%                       
$k2nd]$k,,quit]                         
$k,f"1]$k8] 3,clear ,home $k,,clear]    
$k$_d]$k,y.k]                           
$k,,clear]$k,x]$k_<]$k2]$k,,enter]      
$k,,clear]$k.5]                         
$k,x]$k_<]$k2]$k,,enter]                
$k,,clear]$k2]$k,x]$k_<]$k2]            
$k,,enter]                              
$k,,clear]$k(-)]$k1.5]$k,x]$k_<]$k2]    
$k,,enter] _:                           
                                        
      @.<,calculator scre5 icons %[n on 
    ! m5u b> >e n 9clud$ 9 ! brl text   
    un.s !y >e hi<li<t$ = a "picul>     
    r1son4@.>                           
                                        
                                        
                                        
                                        
                                     #ie

    @.<,com;ts@.>                   a#eg
,l9e #c3 .1,solu;n is transcrib$ z a    
  p>agraph4                             
,l9e #e3 .1,key/roke is a cell #e h1d+4 
,l9es #f-#ae3 ,use ! calculator key/roke
  9dicator to op5 a key/roke & ! t]m9a;n
  9dicator to close4 ,? 3/ruc;n m/ 2    
  transcrib$ )9 ! ,neme? ,code swit*es  
  "<,,gc #b4a1 ,,gc #b4b & ,,gc #b4c">4 
  ,no spaces >e 9s]t$ 2t key/rokes      
  "<,,gc #b4f">4 ,use no 3trac;ns 9 ^ws 
  )9 a key/roke 9dicator "<,,gc #b4e">4 
,l9es #ag-#bj3 ,transcrib]'s note       
  expla9+ ! omis.n ( ! m5u b> tab       
  labels4                               
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        

    ,scre5 ,4play                    #eh
_% $gcs 77777777777777777777777777777777
$<o ,,plots                             
@> y1 .k x^2                            
@> y2 .k #.5*x^2                        
@> y3 .k #2*x^2                         
@> y4 .k -#1.5*x^2                      
  y5 .k $=                              
3333333333333333333333333333333333333333
y5(x) .k                                
3333333333333333333333333333333333333333
,,main  ,,rad ,,auto  ,,func            
ggggggggggggggggggggggggggggggggggggg _:
                                        
    ,key/rokes _%                       
$k$_<o]$k$_<o]$k$_<o]$k$_<o]$k2nd]      
  $k,f"6]                               
$k2] 3,dot                              
$k$_%o]$k2nd]$k,f"6]$k1] 3,line         
$k$_%o]$k2nd]$k,f"6]$k4] 3,thick        
$k$_%o]$k2nd]$k,f"6]$k1] 3,line _:      
                                        
      @.<,! next scre5 has a dropd[n m5u
    f ! m5u b>4 ,af a blank l9e1 ? m5u  
    foll[s ! scre5 9=ma;n4@.>        #ig

                                     #ei
                                        
    @.<,com;ts@.>                       
,l9e #a-#b3 ,a blank l9e is n left 2t an
  op5+ scre5 l9e & a relat$ h1d+4       
  "<,,bf">                              
,l9e #c3 ,upw>d-po9t+ >r[h1d            
  "<,,gc #h4c">4                        
,l9es #d-#g3 ,*eck m>k "<,,gc #i">4     
,l9e #h3 ,l9e is 9d5t$ 9 pr9t4          
  ,transcribe two cells to ! "r ( !     
  2g9n+ ( ! previ\s pr9t l9e            
  "<,,gc #e4b4a">4 ,solid cursor        
  "<,,gc #h4c">4                        
,l9es #i & #aa3 ,horizontal l9es sep>at+
  sec;n ( ! scre5 run ! wid? ( ! page   
  "<,,gc #e4h">4                        
,l9e #aj3 ,symbols >e n 9s]t$ to replace
  blank spaces 9 pr9t "<,,gc #e4e">4    
,l9e #ab3 ,:5 items 9 a horizontal li/  
  3si/ ( two or m ^ws1 two spaces >e    
  9s]t$ 2t ea* item "<,,gc #e4f">4      
,l9e #ac3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          

,l9e #ad3 ,a blank l9e is requir$   a#ei
  by ,,gc #d4c4                         
,l9e #ae3 .1,key/roke is a cell #e h1d+4
,l9es #ah-#bj3 ,no 3trac;ns >e us$ 9    
  .1,l9e & .1,?ick4 ,^! ^ws appe> 9 !   
  adjac5t scre5 & ne$ to replicate _!   
  appe>.e 9 ! scre54                    
,l9es #ah-#bj3 ,no space is 9s]t$ 2t a  
  colon & a foll[+ ^w or lr to : x      
  applies4                              
,l9es #bb-#be3 ,? is a transcrib]'s note
  expla9+ ! drop d[n m5u 9 ! foll[+     
  calculator scre54                     
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                        
                                     #ii

    ,scre5 ,4play                    #fj
_% $gcs 77777777777777777777777777777777
$<o ,,plots                             
@> y1 .k _x^2                           
@> y2 .k #.5*x^2                        
@> y3 .k #2*x^2                         
@> y4 .k -#1.5*x^2                      
  y5 .k                                 
3333333333333333333333333333333333333333
y1(x) .k x_<2                           
3333333333333333333333333333333333333333
,,main  ,,rad ,,auto  ,,func            
                                        
_,f6 _$%o _,style                       
@> #1_3 ,line                           
  _#2_3 l,dot                           
  #3_3 ,square                          
  #4_3 ,thick                           
  #5_3 ,animate                         
  #6_3 ,path                            
  #7_3 ,above                           
  #8_3 ,below                           
ggggggggggggggggggggggggggggggggggggg _:
                                        
                                        

    @.<,com;ts@.>                    #fa
,l9e #a-#b3 ,a blank l9e is n left 2t an
  op5+ scre5 l9e & a relat$ h1d+4       
  "<,,bf">                              
,l9e #c3 ,upw>d-po9t+ >r[h1d            
  "<,,gc #h4c">4                        
,l9e #d3 ,! t]m is hi<li<t$ 9 pr9t      
  "<,,gc #e4c">4                        
,l9es #d-#g & #ae3 ,*eck m>k            
  "<,,gc #i">4                          
,l9e #h3 ,l9e is 9d5t$ 9 pr9t4          
  ,transcribe two cells to ! "r ( !     
  2g9n+ ( ! previ\s pr9t l9e            
  "<,,gc #e4b4a">4 ,symbols >e n 9s]t$  
  to replace blank spaces 9 pr9t        
  "<,,gc #e4e">4                        
,l9es #i & #aa3 ,horizontal l9es sep>at+
  sec;ns ( ! scre5 run ! wid? ( ! page  
  "<,,gc #e4h">4                        
,l9e #aj3 ,ma? c>et "<,,nc">            
,l9e #ab3 ,:5 items 9 a horizontal li/  
  3si/ ( two or m ^ws1 two spaces >e    
  9s]t$ 2t ea* item "<,,gc #e4f">4      
,l9e #ac3 ,blank l9e p] transcrib]'s    
  note on previ\s page4             #aja

,l9e #ad3 ,a tab ( ! dropd[n m5u    a#fa
  is hi<li<t$ "<,,gc #e4b">4            
  ,d[nw>d-po9t+ >r[h1d "<,,gc #h4c">4   
,l9e #af3 ,items >e hi<li<t$            
  "<,,gc #e4b">4                        
,l9es #af-#bb3 ,l9es >e 9d5t$ 9 pr9t4   
  ,transcribe two cells to ! "r ( !     
  2g9n+ ( ! previ\s pr9t l9e            
  "<,,gc #e4b4a">4                      
,l9e #bc3 ,clos+ scre5 l9e & ,neme?     
  ,code t]m9ator "<,,gc #d &            
  ,,gc #d4a">4                          
                                        
              @.<,! ,5d@.>