HP HP-11C - Page 92

90 Section 5: Programming Basics
The radius (r) and the height (2) of the can are keyed into the
X-and Y-registers, respectively before the program is run.
To record this program, set the HP-11C to Program mode, then key
in the following program instructions.
Keystrokes Display
CLEAR 000- Clears program memory
and displays line 000.
001-42,21,11
002- 43 11 Squaretheradius.
003- 4216 PlacerinX.
004- 20 Calculate the area of the
base.
R/S 005- 31 Stop torecord the area.
006- 20 Calculate the final
volume.
007- 43 32
Set the HP-11C to Run mode. Then use the program to complete the
table below:
Height | Radius | AreaofBase | Volume
25 10.0 ? ?
8 45 ? ?
Keystrokes Display
25 25.0000 Enter the height into the
Y-register.
10 314.1593 Key the radius into the X-
register and calculate
area. Program stops to
display the area.
R/S 7.853.9816 Volume of first can is
calculated.
8 8.0000 Enter the height into the
Y-register.