The Program Menu And Program Editing - HP 30b - Business Professional Calculator User Manual

The Program Menu and Program Editing

Now that we have been through some short examples, let us look at some of the programming
details.
The Program menu displays a list of the ten programs that are in the calculator. Use the
<
and keys to scroll through the program menu. For each program, the number displayed
at the bottom is the memory space used/occupied by the program and a checksum value of
that program. For example, program 0 for the sphere uses 13 bytes and has a checksum of
104 (see Figure 2).
There are 290 bytes of program space available.
To erase all the programs, open the Reset menu (press
mode. In the reset menu, select Prgm. The number at the bottom of the display represents the
amount of programming steps in use. Press
To erase a specific program, go to the program menu, select the program with the
>
keys, and press
To execute a program, select the program in the program menu and press
To edit or modify an existing program, select the program in the program menu and press
I
:
1. Review your program by pressing the
2. Delete the currently displayed instruction by pressing
3. Exit the program by pressing
4. Any other key that you press will be inserted as an instruction in the program.
>
5. Insert an
< O
,
Note: you can
to a specific label.
80 Programming
:xI
O
< O {
, , , or
{
, or .
(HOLD)
Figure 2
:x
I
twice to erase all programs.
to erase that specific program.
< >
or keys.
{
:E
or .
instruction by pressing
(HOLD)
followed by a label number to go
outside
) from of program
<
=
.
.
:
(HOLD) and
>
or
>
,