HP 39gs Graphing manual Menus, Program, Commands, Inactive keys, To search a menu

•	Pressing	displays a menu of physical
	constants from the fields of chemistry, physics,
	and quantum mechanics. You can use these
	constants in calculations. (See “Physical
	constants” on page 13-25 for more information.)
•	Pressing	takes you to the beginning of the

	MATH menu.
	See “Math functions by category” on page 13-2 for
	details of the math functions.
H I N T
	When using the MATH menu, or any menu on the
	hp 39gs, pressing an alpha key takes you straight to the
	first menu option beginning with that alpha character.
	With this method, you do not need to press		first.
	Just press the key that corresponds to the command’s
	beginning alpha character.
Program
	Pressing	CMDS displays the list of Program
commands	Commands. See “Programming commands” on
	page 18-13.
Inactive keys	If you press a key that does not operate in the current
	context, a warning symbol like this ! appears. There is
	no beep.

Menus

A menu offers you a choice of items. Menus are displayed in one or two columns.

•The arrow in the display means more items below.

•The arrow in the

display means more items above.

To search a menu • Press or to scroll through the list. If you press

or , you’ll go all the way to the end or the beginning of the list. Highlight the item

you want to select, then press (or ).

1-8 Getting started