Section 8: Program Editing129
  3. In normal or USER mode, press g GTO · and specify the program name (e.g., g GTO · ALPHA AREA ALPHA positions the calculator to the ALPHA label named AREA in program memory).
To reset to the beginning of AREA:
Keystrokes Display    
g GTO · 
       
   
ALPHA AREA ALPHA 
  3,919.2861    
  Number remains form previous
example.
You could also have used g RTN or g GTO · 000 to reset the calculator to the beginning of the AREA program.
Set the HP-41C to PRGM mode to verify that the calculator is now set to the beginning of AREA. Make sure to set the calculator back to normal mode.
Keystrokes Display    
PRGM 
  01 LBLTAREA     
  Program mode. Line 1 of AREA.
PRGM 
  3,919.2861    
  Back to normal mode.
Single-Line Execution of a Program
In normal or USER mode, you can execute any program you have stored in program memory one line at a time by pressing the SST (single step) key.
To execute one line of AREA at a time using a height of 132 centimeters and a radius of 29.21 centimeters, you must first initialize the program:
Keystrokes Display    
132 ENTER  
  132.0000    
  The height.
29.21
  29.21 _    
  The radius.
Now press SST and hold it down to see the instruction in the next line. When you release SST , the next instruction is executed. (If you hold it down too long, the SST will be nullified.)
To execute one line of AREA at a time using a height of 132 centimeters and a radius of 29.21 centimeters, you must first initialize the program:
Keystrokes Display    
SST 
  01 LBLTAREA     
  Instruction in line 1 is seen when you hold SST down.
 
  29.2100    
  The LBL AREA instruction is executed when you release SST .