Reference Guide
1-6 RPL Programming
This is the program:
« '1/3*π*H^2*(3*R-H)' →NUM »
Now use SPH to calculate the volume of a spherical cap of radius
r = 10 and height h = 3.
First, store the data in the appropriate variables. Then select the VAR menu and execute the program. The answer is
returned to level 1 of the stack.
10 O R K
3 O H K
J
%SPH%
Viewing and Editing Programs
You view and edit programs the same way you view and edit other objects — using the command line.
To view or edit a program:
1.
View the program:
If the program is in level 1, press
˜
(or use the EDIT command).
If the program is stored in a variable, use the Filer (
!¡
) to select the variable and press
@EDIT!
(
‘
), or
press
J
, then
@
and the variable’s menu key (a shortcut to recall a variable’s contents to level 1), followed
by
˜
. Alternatively, with the variable name in level 1 press
„
˜
(or use the EDITB, VISIT or VISITB
command).
2.
Optional: Make changes.
3.
Press
`
to save any changes (or press
−
to discard changes) and return to the stack, or to Filer if you used
Filer to select the program.
Filer lets you change a stored program without having to do a store operation. From the stack you can change a
program and then store the new version in a different variable.
While you’re editing a program, you may want to switch the command-line entry mode between Program-entry
mode (for editing most objects) and Algebraic/Program-entry mode (for editing algebraic objects). The
PRG
and
ALG
annunciators indicate the current mode.
To switch between entry modes:
Press
@Í
.
Example:
Edit SPH from the previous example so that it stores the number from level 1 into variable H and the
number from level 2 into variable R.
Select SPH from the soft keys.
J
@
%SPH% ˜
Move the cursor past the first program delimiter and insert the new program steps.
™O
H
™K
O
R
™K