Chapter 12: Program Application 199
When program execution returns to the main program, it resumes from the point immediately after the
command that jumped to the subroutine.
Example 1: Main Program: Subroutine: “Sub1”
Example 2: Main Program: Subroutine: “Sub2”
Using Strings in a Program
A string is a series of characters inside of quotation marks. In a program, strings are used to specify display
text. A string made up of numbers (like “123”) or an expression (like “x–1”) cannot be processed as a
calculation.
Tip: To include quotation marks (") or a backslash (\) in a string, put a backslash (\) in front of the quotation marks (") or
backslash (\).
Examples:
To include Japan: “Tokyo” in a string To include main\abc in a string
Print "Japan:\"Tokyo\"" Print "main\\abc"
Running a Program
Example: To run the “OCTA” program created under “Creating a Program” (page 197) to calculate the surface
areas and volumes of three regular octahedrons, the lengths of whose sides are 7, 10, and 15
u To run a program
1. On the Program Loader window, specify the program you want to run.
(1) Tap the [Folder] down arrow button, and then select the folder you want.
(2) Tap the [Name] down arrow button, and then tap the name of the file.
Here, we will tap “OCTA”.
• In this example, the “Parameter” input box is left blank. For information
about using the “Parameter” input box, see “Configuring Parameter
Variables and Inputting Their Values When Creating a Program” (page 198).
2. Tap ., or tap [Run] and then [Run Program] to run the program.
• This runs the program and displays a dialog box prompting for input of a value for variable A (length of one
side).
Jumps to subroutine program “Sub1”
Assigns the values of main program variables “A” and “B” to the parameter
variables (D and E) in subroutine “Sub2”, and then jumps to subroutine “Sub2”.
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