Casio ClassPad 300 Manual de usuario descargar pdf (Pagina 526)

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Modifying an Existing Program to Create a New One

You can use the procedure described below to recall an existing program, modify it, and then

run the result as a new program. This helps reduce key input requirements.

The following shows how to modify the “OCTA” program we created on page 12-2-1 to

handle tetrahedrons.

Example: To create a program named “TETRA” that calculates the surface areas (cm

) and

volumes (cm

) of three regular tetrahedrons, the lengths of whose sides are 7, 10,

and 15 cm

The following formulas calculate the surface area S and volume V of a

regular tetrahedron for which the length of one side A is known.

The following is the program required for this example.

Length of One Side A ........ Input A

Surface Area S .................. Print approx( (3) × A^2)

Volume V ........................... Print approx( (2) ÷ 12 × A^3)

The following is the “OCTA” program (page 12-2-1).

Length of One Side A ........ Input A

Surface Area S .................. Print approx(2 × (3) × A^2)

Volume V ........................... Print approx( (2) ÷ 3 × A^3)

A comparison of the two programs indicates that the following modifications of the “OCTA”

program will produce a program that performs the calculations required by this example.

•Delete “2×” (underlined with a wavy line above).

•Change 3 to 12 (underlined with double lines above).

u ClassPad Operation

(1) On the application menu, tap p.

(2) Tap ~, or tap [Edit] and then [Open File].

12-3-2

Debugging a Program

S = 3 A

,V = –––– A

1 2 ... 521 522 523 524 525 526 527 528 529 530 531 ... 669 670

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Casio ClassPad 300 Manual de usuario Pagina 526

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