HP Prime Graphing NW280AAABA manual Programming in HP PPL 553

PRINT Syntax: PRINT(expression or string);

Prints the result of expression or string to the terminal.

The terminal is a program text output viewing mechanism which is displayed only when PRINT commands are executed. When visible, you can press \or =to view the text, Cto erase the text and any other key to hide the terminal. Pressing Ostops the interaction with the terminal. PRINT with no argument clears the terminal.

There are also commands for outputting data in the Graphics section. In particular, the commands TEXTOUT and TEXTOUT_P can be used for text output.

This example prompts the user to enter a value for the radius of a circle, and prints the area of the circle on the terminal.

EXPORT AREACALC() BEGIN

LOCAL radius; INPUT(radius, "Radius of Circle","r = ","Enter radius",1);

PRINT("The area is " +π*radius^2); END;

Notice the use of the LOCAL variable for the radius, and the naming

convention that uses lower case letters for the local variable. Adhering to such a convention will improve the readability of your programs.

WAIT Syntax: WAIT(n);

Pauses program execution for n seconds. With no argument or with n = 0, pauses program execution for one minute.

Programming in HP PPL 553