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18
Specific Features of the HP-33E
Number Alteration Keys
Besides (¢hs], your HP-33E has three other keys provided for altering
numbers — (48S], [INT] and [FRAC]. These keys are often used in pro-
grams for manipulating numbers.
Absolute Value
Some calculations require the absolute value or magnitude of a number.
To obtain the absolute value of the numberin the displayed X-register,
press the (9] prefix key followed by the
(absolute value) key.
For example, to calculate the absolute value of —3.
Keystrokes
Display
3 (cns)
-3.
@
3.0000
| -3
Integer Portion of a Number
To extract and display the integer portion of a number, press the (9]
prefix key followed by the
(integer) key. For example, to display
only the integer portion of the number 123.456:
Keystrokes
Display
123.456
123.456
(8]
123.0000
Only the integer portion
remains.
When (9]0 is pressed, the fractional portion of the numberis lost.
The entire number, of course, is preserved in the LAST X register.
Fractional Portion of a Number
To extract and display only the fractional portion of a number, press
the (9] prefix key followed by the
(fraction) key. For example,
to see the fractional portion of the 123.456 used above:
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