Sharp EL-9900 User Manual

Page 42

Chapter 3: Basic Calculations — Basic Keyboard

CONCEPT

1. Enter a math expression, then perform the calculation.

2. Save a number into a variable, then recall the value later.

PROCEDURE

1. First, press

#, then C to clear any screen entries.

2. Type 186282

= 7.5,

then press

E. The

circumference of the earth is

thus obtained.

3. Store the answer in a variable. A variable is a symbol under

which you can store a numerical value.

We will use variable A to

store the circumference of

the earth. Press

R to set

the “store” mode. Press
A A, then E to
store the answer. To call up

the stored answer, press

A A E again.

Note:

While checking the stored values, you may see “0”; this means

that no value is stored in the variable.

4. Now, since the value you

have stored under “A” is the

distance you will be travel-

ling in 24 hours, divide the

number by 24. Press

= 24, then E.

So, you are travelling at 1034.9 miles/hour. That is fast!