Table of Contents
Advertisement
Section 1
Getting Started
Your HP-25 is
shipped
fully
assembled,
including
a
battery
.
You
can
begin using
your
calculator immediately by connecting
the
cord
from the
ac
adapter/battery
charger
to the
calculator
and
plugging the charger into
an ac outlet.
If
you want
to use
your
HP-25
on
battery power
alone,
you
should charge the
bat-
tery for
6
hours first. Whether
you operate
from battery power
or
from power
supplied by
the
charger,
the battery must always
be
in th
e
calculator.
To
begin:
•
Slide the
PRGM-RUN
switch
P!lGM
mil
RUN
to
RUN
.
•
Slide the OFF-ON switch
OFF~ ON
to
ON.
Display
With the PRGM-RUN
switch set to
RUN,
the
bright red dis-
play that
you see
when you turn the
calculator ON gives you
two kinds
of
information:
I.
You see
numbers
as
you
key them in.
2.
You
see all intermediate
a
nd
final answers
as
they are
calculated.
When
you
first turn the
calculator ON
,
the
display
is
set
to
I
0.00
I
to
show
you
that all
zeros are
present
there.
Keyboard
Most
keys
on
the keyboard perform three
functions.
One
func-
tion is indicated by the
symbol
on the flat
face of
the
key
,
another
by the blue
symbol
on the
slanted key face, and
a third by the
gold
symbol written
above the key
on
the
calculator case
.
•
To
select
the function
printed in
blue on
the
slanted
face
of
the
key, first
press
the
blue prefix
key
II
,
then
press
the
function key.
•
To
se
lect the
function printed on the flat face of
the
key
,
press
the
ke y.
•
To
select
the function
printed in
gold
above
the key
,
first
press the gold
prefix ke
y
,
then press the function key.
13
Hide quick links:
Advertisement
Table of Contents
