HP Prime Graphing NW280AAABA manual Msgbox Syntax MSGBOXexpression or string ,okcancel?

ISKEYDOWN Syntax: ISKEYDOWN(key_id);

Returns true (non-zero) if the key whose key_id is provided is currently pressed, and false (0) if it is not.

MOUSE Syntax: MOUSE[(index)]

Returns two lists describing the current location of each potential pointer (or empty lists if the pointers are not used). The output is {x , y, original z, original y, type} where type is 0 (for new), 1 (for completed), 2 (for drag), 3 (for stretch), 4 (for rotate), and 5 (for long click).

The optional parameter index is the nth element that would have been returned—x, y, original x, etc.—had the parameter been omitted (or –1 if no pointer activity had occurred).

MSGBOX Syntax: MSGBOX(expression or string [ ,ok_cancel?]);

Displays a message box with the value of the given expression or string.

If ok_cancel? is true, displays the and

buttons, otherwise only displays the button. Default value for ok_cancel is false.

Returns true (non-zero) if the user taps , false (0) if

the user presses .

EXPORT AREACALC() BEGIN

LOCAL radius;

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

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

If the user enters 10 for the radius, the message box shows this:

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