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Meet the
HP-33E
13
If
you
are new to
HP
calculators and their RPN logic
system, you
may
want to
carefu
ll
y
work through
Solving
Problems With
Your
Hew/ell·
Packard
CalclIlator
before
consu
lting thi
s
handbook. Even if
you
already
own another
HP
calculator, you
will find
some
new
features
in
the problem
solving
book.
Now
let's
take
a
closer
look
at
your
calculator
to
see how easy
it
is
to
use, whether we
solve
a problem manually or use its programming power
to
solve
the problem automatically.
Manual Problem Solving
Before proceeding you
shou
ld
be
comfo
rtable
so
lving
problems
manually. If not,
refer
to the Getting Started
section of
Solving Problems
With Your Hewlett-Packard
Calculator.
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.
If
you were
to
calcu late the surface
area
of a sphere, you
wou ld use
the formula
A
=
1Td 2 where:
A
is the
surface
area
of
the
sphere.
d
is
the
diameter of
the
sphere.
1T
is the
va lue of
pi, 3.14 1592654.
Example
:
Ganymede,
one
of Jupiter's
12 moons,
has
a
diameter
of 3,200
miles.
You can
use the
calculator
to
manually
compute
the
surface area of
Ganymede
.
Merely press the following
keys in order.
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