2 programming examples – Casio fx-9750G PLUS User Manual
Page 381
353
20-2 Programming Examples
Example 1 To calculate the surface area and volume of three regular
octahedrons of the dimensions shown in the table below
Store the calculation formula under the file name OCTA.
A
Length of One Side (A)
Surface Area (S)
Volume (V)
7 cm
cm
2
cm
3
10 cm
cm
2
cm
3
15 cm
cm
2
cm
3
The following are the formulas used for calculating surface area S and volume V
of a regular octahedron for which the length of one side is known.
2
S = 2 3 A
2
, V = –––– A
3
3
When inputting a new formula, you first register the file name and then input the
actual program.
u
u
u
u
u
To register a file name
Example
To register the file name OCTA
• Note that a file name can be up to eight characters long.
1. Display the program list menu and press 3 (NEW) to display a menu, which
contains the following items.
• {
RUN}/{BASE} ... {general calculation}/{number base} program input
P.360
• {Q
Q
Q
Q
Q
} ... {password registration}
• {
SYBL} ... {symbol menu}
2. Input the name of the file.
OCTA
• The cursor changes form to indicate alpha character input.
• The following are the characters you can use in a file name:
A through Z,
r
,
θ, spaces, [, ], {, }, ’, ”, ~, 0 through 9, ., +, –, Ч, ч
• Note, however, that v and . cannot be input for the name of a program
that contains binary, octal, decimal, or hexadecimal calculations.
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