HP HP-67

86 Function Keys
=3 6 16.390000 FIX 6 display shows
that number has been
rounded.
Q 16.387064 The original number.
g
DsP ) 16.39 Display mode reset to
FIX 2.
A fixed point number that has underflowed to scientific notation
display is rounded to 0.00 by the function.
Absolute Value
Some calculations require the absolute value, or magnitude, of a
number. To obtain the absolute value of the number in the displayed
X-register, press the [ shift key followed by the (absolute
value) key. For example, to calculate the absolute value of —3:
Press Display
3 ]
o 3.00 | -3
To see the absolute value of +3:
Press Display
0 (s | +3]
Integer Portion of a Number
To extract and display the integer portion of a number, press the
{0 prefix key followed by the (integer) key. For example, to
display only the integers of the number 123.456:
Press Display
123.456 123.456
o
Only
the
integer
portion
of the number remains.
When [ is pressed, the fractional portion of the number is
lost. The entire number, of course, is preserved in the LAST X
register.