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Programming Chapter 8
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.
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.
uu
uu
uTo register a file name
Example To register the file name OCTA
• Note that a file name can be up to eight characters long.
1. While the program list is on the display, press 3 (NEW).
3(NEW)
4 (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, spaces, [, ], {, }, ’, ”, ~, 0 through 9, ., +, –, !, ÷
A
1234
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