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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 carefully work through Solving Problems With Your Hewlett-
Packard Calculator before consulting this 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 should be comfortable solving 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 calculate the surface area of a sphere, you would use
the formula A = md* where:
A is the surface area of the sphere.
d is the diameter of the sphere.
7 is the value of pi, 3.141592654.
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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