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HP 25 User Manual

HP 25
132 pages
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BEnter
ex
ponent.
After
pressing
,
next
numbers
keyed in are
ex
ponents
of
10
(page
31).
~
Radians. Sets
radians
mode
for
trigonometric
functions
(page
59).
[STK]
Clear
stack
.
Replaces
contents
of
X-
,
Y-
,
Z-
, and T-
r
egisters
with
zeros
(page
37)
.
.Clear
x.
Clears
the
displayed
X-
register
to
zero
(page
15)
.
~
Grads.
Sets
grads
mode
for
trigonometric
functions
(page
59).
ElElC8JEI
Arithmetic
operators
(page
16)
.
[EJ
Natural
logarithm
.
Computes
natural
logarithm
(base
e,
2.718 .
..
)
of
value in
displayed
X-register
(page
63).
~
Natural
antilog
.
Raises e
(2
.718 .
..
)
to
the
power
of
value
in
displayed
X-register
(page
63).
~
Common
logarithm.
Computes
common
logarithm
(base 10)
of
value
in
displayed
X-register
(page
63)
.
~
Common
antilogarithm
. Raises
10-
to
the
power
of
number
in
displayed
X-register
(page
63)
.
~
Rectangular
coordinate
conversion
.
Converts
polar
magnitude
and
angle
in
X-
and
Y-
registers
to
rectangular
x and y
coord
inates
(page
62).
~
Polar
coordinate
conversion
.
Converts
x, y
rectangular
coordinates
placed
in
X-
and
V-registers
to
polar
magnitude
and
angle
(page
62).
~
~[§]
Sine,
cosine
, and
tangent.
Calculate
the
sine,
cosine,
or
tangent
of
value in
displayed
X-register
(page
59).
I sino' I
§J
[t304]
Arc sine,
arc
cosine
,
arc
tangent.
Calculate
inverse
trigonometric
function
of
value in
display
(page
59)
.
~
Integer.
Leaves
only
integer
portion
of
number
in displayed
X-register
by
truncating
fractional
portion
(page
51
).
I
FRAC
I
Fraction.
Leaves
only
fractional
portion
of
number
in
displayed
X-
register
by
truncating
integer
portion
(page
51).
[KJ
Computes
square
root
of
number
in
displayed
X-register
(page
52).
0
Computes
square
of
number
in
displayed
X-register
(page
53)
.
~
Raises
number
in
V-register
to
the
power
of
the
number
in
the
displayed
X-register
(page
64).
I
ABS
I
Absolute
.
Gives the
absolute
val ue
of
the
displayed
number
(page
51).
I
.H
.MS I
Converts
displayed
decimal
hours
or
degrees
to
hours, minutes,
seconds
format
(page
60)
.
E!D
Converts
displayed
value
in
hours, minutes,
seconds
format
to
decimal
hours
or
degrees
(page
60).
I
LAST
X I Recalls
number
displayed
before
the
previous
operation
back
into
the
displayed
X-register
(page
49).
~
Pi.
Places value
of
pi (3.14159
...
)
into
displayed
X-
register
(page
53).

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HP 25 Specifications

General IconGeneral
BrandHP
Model25
CategoryCalculator
LanguageEnglish

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