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HP HP-25 User Manual

HP HP-25
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~unctuon
Keys
B
Clears
the
blue
prefix
keystroke.
CHS
The
correct
operation,
change
sign,
is
performed.
Number
Alteration
Keys
Besides
[
there
are
three
keys
provided
on
the
HP-25
for
altering
numbers.
These
keys
are
[aBs]
,
[Frac
and
7],
and
they
are
most
useful
when
performing
operations
as
part
of
a
program.
Absolute
Value
:
Some
calculations
require
the
absolute
value,
or
magnitude,
of a
number.
To
obtain
the
absolute
value
of
the
number
in
the
display,
press
the
[
prefix
key
followed
by
the[rgs]
(absolute
value)
key.
For
example,
to
calculate
the
absolute
value
of
—3:
Press
Display
3
Bl
(sl
-3
To
see the
absolute value of
+3:
Press
Display
B
|+3]
Integer
Portion
of
a
Number
To
extract
and
display
the
integer
portion
of
a
number,
press
the
[[il
prefix
key
followed
by
the[[i7]
(integer)
key.
For
example,
to
display
only
the
integers
of
the
number
123.456:
Press
Display
123.456
BNt
Only
the
integer
portion
of
the
number
remains.
When
[[Il[[i7T]is
pressed,
the
fractional
portion
of
the
number
is
lost..
The
entire
number,
of
course,
is
preserved
in
the
LAST
X
register.
Fractional
Portion
of
a
Number
To
place
only
the
fractional
portion
of
a
number
into
the
dis-
played
X-register,
press
the
[l
prefix
key
followed
by
the

Table of Contents

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HP HP-25 Specifications

General IconGeneral
BrandHP
ModelHP-25
CategoryCalculator
LanguageEnglish

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