HP HP-25 - Page 88

will begin execution from step 00. Then use the program to
complete the table below:
Height Radius Area of Base Volume
25 10 ? ?
8 4.5 ? ?
Press Display
25 Enter the height into the
Y-register.
10 314.16 Program stops to display the
area.
R/S 7853.98 Volume of first can is calculated.
8 Enter the height into the
Y-register.
4.5 63.62 Program stops to display the
area.
R/S 508.94 Second volume is calculated.
With the height in the Y-register and the radius in the X-register,
pressing[r/s] in automatic RUN mode calculates the area of
the can’s base ; the program stops at the first instruction
encountered. Pressing [R/s]again calculates the volume of the
can and program execution stops at step 00, ready to run again.
In general, [R/s] is recorded into a program when you need to
display more than one answer. To display only one answer or
the final answer of a series, the [0] [0] instruction in a pro-
gram is more convenient since the calculator ends execution at
step 00, ready to begin again.
Pausing During Program Execution
An [[[pause instruction executed in a program momentarily
interrupts program execution to display intermediate results
that do not have to be written down. The length of the pause is
about one second, although more thanone |7 instruction
can be used to lengthen the time if desired.