
■ Press fCANCEL).
Enter a program that takes a radius value from the stack
and calculates the volume of a sphere of radius r using
V = -7rr’’
o
Step 1: If you were going to calculate the volume manually after
entering the radius on the stack, you might press these keys:
3 O O® ©4030 QSHM)
Enter the same keystrokes in a program. starts a
new line.)
^NUM
3 O Q® ® 4 © 3 0
fSlSSM)
Step 2: Put the program on the stack.
iENTER]
1:
Step 3: Store the program in variable VOL. Then put a radius of 4
on the stack and run the VOL program.
1: £68.082573107
CD (©(hold) VOL (release)
fSTO]
4 (VAR) VOL
Replace the program from the previous example with one
that’s easier to read. Enter a program that uses a local
variable structure to calculate the volume of a sphere.
The program is
-J-NLi
(You need to include -^NUM because tt causes a symbolic
result. Try the program with and without the -^NUM
command.)
29
Programming the HP 48 29-7
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