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Simple Programming
35
Keystrokes
Display
30
30.0000
Enter original diameter into
Y.
35
8,312.1306
Key new diameter into X
and run the program. The
answeris displayed in cubic
feet.
Displaying Each Step
In order to look at this program, you need to be able to display each
line. Two operations allow you to step through program memory:
(single step) and
(back step).
With the increase in sphere volume program still recorded in the calcu-
lator, set the PRGM-RUN switch praM|Jl[[[Jrun to RUN and press
(9][("Tn] to reset the calculator to line 00. Then switch to PRGM mode
and press
once. The display will change to:
01-
31
Press
again and the display will change to:
02-
3
Now press [9](85T] . You can see what has happened. You are back at
program memory line 01. Press (9]
again and line 00 is displayed.
Pressing [9(857) again does nothing.
displays the contents of the next line of program memory. (9]
displays the contents of the previous line of program memory.
Of course because these two keys work in PRGM mode, neither can
be stored in program memory.
Going to a Line Number
You can see that if you wanted to single step forward from line 00
to some remote line number in program memory, it would take a great
deal of time and a number of presses of the
key. To make it
easy for you, the HP-33E gives you another nonrecordable operation,
. nn, that permits you to go to any line number of program memory.
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