Programming 18-7
Using programs
Run a program From HOME, type RUN program_name.
or
From the Program catalog, highlight the program you 
want to run and press 
Regardless of where you start the program, all programs 
run in HOME. What you see will differ slightly depending 
on where you started the program. If you start the 
program from HOME, the HP 39gs displays the contents 
of Ans (Home variable containing the last result), when 
the program has finished. If you start the program from 
the Program catalog, the hp39gs returns you to the 
Program catalog when the program ends. 
Debug a 
program
If you run a program that contains errors, the program 
will stop and you will see an error message.
To debug the program:
1. Press   to edit the program.
The insert cursor appears in the program at the point 
where the error occurred.
2. Edit the program to fix the error.
3. Run the program. 
4. Repeat the process until you correct all errors.
Stop a program  You can stop the running of a program at any time by 
pressing CANCEL (the  key). Note: You may have to 
press it a couple of times.
HP 39gs English.book  Page 7  Wednesday, December 7, 2005  11:24 PM