Program Calculations
What is a Program?
This unit has a built-in program feature that facilitates repeat calculations. The
program feature is used for the consecutive execution of formulas in the same
way as the “multistatement” feature is used in manual calculations. Programs
will be discussed here with the aid of illustrative examples.
Example
Find the surface area and volume of a regular octahedron when the length
of one side is given.
Length of
one side (A)
Surface area (S) Volume (V)
10 cm
<
)cm2
( )cm3
7
( )
( )
15
< ) ( )
*Fill in the parentheses.
©Formulas
For a surface area S, volume V and one side A, S and V for a regular octahedron
are defined as:
S = 2V3A2 V = ^p-A3
o
©Programming
Creating a program based on calculation formulas is known as “ programming”.
Here a program will be created based upon the formulas given above. The basis
of a program is manual calculation, so first of all, consider the operational method
used for manual calculation.
Surface area (S): 2 Q 0 3 Q Numeric value A@30
Volume (V): 0 2 H 3 Q Numeric value A ® 3 ®
In the above example, numeric value A is used twice, so it should make sense
to store it in memory A before the calculations.
Numeric value A
2Q 0 3 Q@B@(ixU
........
0 2H 3 Q @ E (I!l3 (ixil
......
S
V
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