Section 8: Program Editing130
The first instruction of AREA is executed when you press and release SST . Continue executing the program line by line by pressing SST . When you hold SST down, you see the instruction in the next line of the program. When you release SST that instruction is executed.
Keystrokes Display    
SST 
  02 STO 01    
  The next line.
 
  29.2100    
  Executed.
SST 
  03 X 2    
  The next line.
 
  853.2241    
  Executed.
SST 
  04 PI    
   
 
  3.1416    
   
SST 
  05 *    
   
 
  2,680.4826    
   
SST 
  06 2    
   
 
  2.0000    
   
SST 
  07 *    
   
 
  5,360.9651    
   
SST 
  08 X<>Y    
   
 
  132.0000    
   
SST 
  09 RCL 01    
   
 
  29.2100    
   
SST 
  10 *    
   
 
  3,855.7200    
   
SST 
  11 PI    
   
 
  3.1416    
   
SST 
  12 *    
   
 
  12,113.1016    
   
SST 
  13 2    
   
 
  2.0000    
   
SST 
  14 *    
   
 
  24,226.2033    
   
SST 
  15 +    
   
 
  29,587.1684    
   
SST 
  16 END    
   
 
  29,587.1684    
   
When you press SST and reach the END of a program, the next press of SST positions the calculator back to the beginning of the program. You can see that the use of END instructions is important.