Interrupting A Running Program; Error Stops; Editing A Program - HP 33s Owner's Manual

Interrupting a Running Program

You can interrupt a running program at any time by pressing
program completes its current instruction before stopping. Press
resume the program.
If you interrupt a program and then press
cannot resume the program with
label).

Error Stops

If an error occurs in the course of a running program, program execution halts and
an error message appears in the display. (There is a list of messages and
conditions in appendix F.)
To see the line in the program containing the error–causing instruction, press
. The program will have stopped at that point, (For instance, it might be a ÷
£
instruction, which caused an illegal division by zero.)

Editing a Program

You can modify a program in program memory by inserting, deleting, and editing
program lines. If a program line contains an equation, you can edit the
equation — if any other program line requires even a minor change, you must
delete the old line and insert a new one.
To delete a program line:
1. Select the relevant program or routine (
¹ £
entry (
that must be changed. Hold the cursor key down to continue scrolling. (If you
know the line number you want, pressing
the program pointer there.)
2. Delete the line you want to change — if it contains an equation, press
¡
{  }; otherwise, press
line. (If you are deleting more than one consecutive program line, start with the
last line in the group.)
12–18
Simple Programming
File name 33s-E-Manual-1008-Publication(1st).doc
Printed Date : 2003/10/8
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Page : 386
Size : 13.7 x 21.2 cm
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