HP HP-25 User Manual

Function Key Index
Manual RUN Mode. PRGM-RUN switch erov T Av set to RUN.
Function keys pressed from the keyboard execute individual functions as
they are pressed. Input numbers and answers are displayed.
[F1X]Fixed display.
Followed by a number
key, selects fixed
point notation display
(page 26).
Scientific display.
Followed by a number
key, selects scientific
notation display
(page 27).
Engineering
display. Followed by a
number key, selects
engineering notation
display (page 28).
n Prefix key. Press
before function key
to select function
printed in gold on the
keyboard above
function key
(page 13).
BPrefix key. Press
before function key
to select function
printed in blue on
slanted face of
function key
(page 13).
Mean. Calculates
mean (average) of the
numbers totaled by
in storage register
R; (page 67).
x exchange y.
Exchanges contents
of X- and Y-registers
(page 37).
E]Standard deviation.
Calculates standard
deviation using
numbers totaled by
in storage
registers R, through
m Roll down. Rolls
down contents of
stack for viewing in
displayed X-register
Reciprocal.
Calculates reciprocal
of the number in the
display (page 52).
Store. Followed
by number key, stores
displayed number in
storage register (0-7)
specified. Followed
by arithmetic operator
key, performs storage
register arithmetic
[=8Recall. Followed
by number key, recalls
value from storage
register (0-7) specified
into the displayed
X-register (page 55).
[%] Percent. Calculates Summation
x% of y (page 54).
minus. Subtracts
values from storage
registers R; through
R, for correcting
summation
entries (page 69).
Summation.
Sums numbers in X-
and Y-registers into
storage registers
R; through R,
(page 66).
Clear prefix.
Atter [ . [ B3 -
or , cancels
that key (page 50).
IS\ lEY Copies
number in displayed
X-register into
Y-register (page 16).
Change sign.
Changes sign of
displayed number or
exponent of 10
(page 14).
[cEG]Degrees. Sets
decimal degree mode
for trigonometric
functions (page 59).
[FC]Clear registers.
Replaces contents of
storage registers R,
through R, with zeros
(page 56).

HP HP-25 Specifications

General

Brand	HP
Model	HP-25
Category	Calculator
Language	English