HP 38g Graphing Calculator - Manual (Page 173)

You can use the following commands to prompt users for
input during your program—or to provide information to
users.
Prompt Commands
BEEP Beeps at the at the frequency and time you specify.
BEEP fr e q u e n c y ;tim e _ in _ s e c o n d s
Exan®le BEEP 1024,-5
Creates a 5-second beep at 1024 Hz.
CHOOSE Where name is the name of the variable from which the number
of the initially-highlighted item is retrieved—and into which the
number of the chosen item will be stored.
Prompt is the top-of-
box prompt or null (meaning no prompt), and item-1 through
item-n are the text items to be displayed. CHOOSE displays a
choose box and sets the specified variable to real number 0
through n corresponding to whether the choose box is canceled
(0), or an item is chosen (1 through n).
CHOOSE n a m e ;p r o m p t,ite m -1 ..ite m - n
Example
3{{STO^}}A: CHOOSE A;
"DILBERT“;
"CALVIN&HOBBES";
"BLONDE";
"COMIC STRIPS",
COMIC STRIFS^^
DILBERT
CflLVIN&HOBBES
BLONDE
Programming 8-21