Program Step 0 - HP 30b - Business Professional Calculator User Manual

Keys
:E
5==

Program Step 0

Programs start at step 1, however, if you edit a program by pressing
program displayed and press the up key
with step 0 displayed and that key becomes a shortcut for the program. You may also assign
:
any (HOLD) key combination as well.
For example, with the sphere example shown in Table 13-2, after your program has calculated
the solution, press
the program used for the sphere example (Figure 1). Press
select step 0. Press
k
key). Exit the program by pressing
:k
and you will see the your program was executed with the same results as shown
in the table!
78 Programming
Display
:E
to open the program menu once again. Prgm 0 is displayed,
: k
followed by
Description
Quits program editing mode. Note that
program 0 uses 13 bytes and has a
checksum of 104. Checksum is a number
that verifies the program data is correct.
You must be set in FIX 3 or higher to see
the full checksum. If your number does not
match that shown, verify your FIX setting
is set for 3 or higher. If three digits are
showing and the number differs from that
shown, the program has been keyed in
incorrectly.
Enters the number 5 (the sphere radius)
and executes program 0. The result, the
volume of the sphere, is 523.6. We press
=
twice: the first press completes the
entry of the 5 (after all, we could have
been in the process of entering an
equation, such as 5*2). The second press
runs the program.
>
, you will find there is a step 0. Press any key
Figure 1
I
(assuming you are not interested in using the
O
, key in a number, 5, and then press
I
with the
>
, followed by to