HP 9100B Operating & Programming Manual page 59

THE KEYBOARD
FUNCTION KEYS
Eliminates the decimal part of the contents of the X
register without affecting the s1gn or the integer part.
EXAMPLE:
integer
- 5.9
==
- 5
SWITCH:
FIXED POINT
SET: DECIMAL DIGITS to 4
PRESS:
CHG
SIGN
5
DISPLAY: - 5 . 9
~
X
PRESS :
int
x
DISPLAY: -5 .
EXAMPLE:
•
9
convert
5.72°
to degrees ( 0
)
and minutes (')
[5°43.2']
SWITCH:
FIXED POINT
SET: DECIMAL DIGITS to 5
enter
5.72
PRESS:
5
• 7 2
t
separate the principle part (degrees) from the deci-
mal part (minutes):
PRESS :
int
x
-
store degrees in the Z register:
PRESS:
ROll
...
convert the decimal part to minutes by multiplying
by 60:
PRESS:
6
0
X
DISPLAY: (
0
)
5.
~
z
(') tt3 .c
~
y
9