HP 39gs Graphing manual Getkey, Input, Msgbox

GETKEY	Waits for a key, then stores the keycode rc.p in name,
	where r is row number, c is column number, and p is key-
	plane number. The key-planes numbers are: 1 for
	unshifted; 2 for shifted; 4 for alpha-shifted; and 5 for both
	alpha-shifted and shifted.
	GETKEY name:
INPUT	Creates an input form with a title bar and one field. The
	field has a label and a default value. There is text help at
	the bottom of the form. The user enters a value and
	presses the	menu key. The value that the user enters
	is stored in the variable name. The title, label, and help
	items are text strings and need to be enclosed in double
	quotes.
	Use	CHARS to type the quote marks " ".
	INPUT name;title,label;help;default:
	Example
	INPUT R; "Circular Area";
		"Radius";
		"Enter Number";1:
MSGBOX	Displays a message box containing textitem. A text item
	consists of any number of expressions and quoted strings
	of text. The expressions are evaluated and turned into
	strings of text.
	For example, "AREA IS:" 2 +2 becomes AREA IS: 4.
	Use	CHARS to type the quote marks " ".
	MSGBOX textitem:
	Example
	1 A:
	MSGBOX "AREA IS: "π*A^2:
	You can also use the NoteText variable to provide text
	arguments. This can be used to insert line breaks. For
	example, press		NOTE and type AREA IS	.

The position line

MSGBOX NoteText " " π*A^2:

will display the same message box as the previous example.

Programming 18-29