EasyManua.ls Logo

HP HP-25 - The HP-25 Means Painless Programming; Manual Problem Solving

HP HP-25
131 pages
Save Page as PDF
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
The
HP-25
Means
Painless
Programming
Your
HP-25
is
a
versatile,handheld
electronic
calculator
that
uses
the
powerful
Hewlett-Packard
logic
system
to
compute
answers
to
complex
mathematical
problems
in
either
of
two
modes:
=
Manual
problem
solving.
You
work
step-by-step
through
the
toughest
of
problems,
choosing
from
among
the
dozens
of
functions
available
to
calculate
the
correct
answer
quickly
and
easily.
=
Programmed
problem
solving.
The
HP-25
memorizes
a
sequence
of
up
to
49
different
functions
as
you
press
them,
and
then
repeats
that
sequence
automatically
as
often
as
you
wish
to
solve
a
particular
type
of
problem.
That’s
all
there
is
to
it!
A
program
is
nothing
more
than
a
se-
quence
of
manual
keystrokes
that
is
remembered
by
the
calcu-
lator.
You
can
then
execute
the
program
as
often
as
you
like.
No
prior
computer
programming
experience
is
necessary
for
HP-25
calculator
programming.
To
see
the
close
relationship
between
the
manual
solution
to
a
problem
and
a
programmed
solution,
let’s
solve
a
problem
manually,
and
then
use
a
program
to
solve
the
same
problem
and
others
like
it.
Manual
Problem
Solving
To
calculate
the
surface
area of
a
sphere,
the
formula
4
=
7
d*
can
be
used,where:
4
is
the
surface
area,s
is
the
value
of
pi,
3.1415...,
and
d
is
the
diameter
of
the
sphere.
Ganymede,
one
of
Jupiter’s
12
moons,
has
a
diameter
of
3200
miles.
To
use
the
HP-25
to
manually
compute
the
area
of
Ganymede,
you
can
press
the
following
keys
in
order:
First,
slide
the
calculator
o
EE[[ov
switch
to
ON,
and
slide
the
rrem
mfl]flfl]
an
SWitch
to
RUN.
Then
press
Display
Diameter
of
Ganymede.
=
10240000.00)
Square
of
the
diameter.
9

Table of Contents

Related product manuals