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Chapter 3: Manual Calculations
CONCEPT
PROCEDURE
28
1. Enter a math expression, then perform the calculation.
2. Save a number into a store, then recall the value later.
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.
4. Now, since the value you have
stored under "A" is the distance you
will be travelling in 24 hours, divide
the number by 24. Press A A
= 24, then E.
So, you are travelling at 1034.9 miles/hour.
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