HP 40G manual Math keys, Program commands Inactive keys

Math keys	HOME (>+20(@) is the place to do calculations.
	Keyboard keys. The most common operations are available
	from the keyboard, such as the arithmetic (like >￿@) and
	trigonometric (like >6,1@) functions. Press >(17(5@ to
	complete the operation: >6+,)7@√ 256>(17(5@ displays 16.

.

MATH menu. Press >0$7+@ to open the MATH menu. The MATH menu is a comprehensive list of math functions that do not appear on the keyboard. It also includes

categories for all other functions and constants. The functions are grouped by category, ranging in alphabetical order from Calculus to Trigonometry.

– The arrow keys scroll through the list ( *e,, *k,) and move from the category list in the left column to the

	item list in the right column (*>,, *A,).
–	Press 2&.$1&/ato insert the selected command onto the edit
	line.
–	Press	to dismiss the MATH menu without
	selecting	command.
–	Pressing	&216a￿displays the list of Program

Constants. You can use these in programs that you develop.

–Pressing 07+atakes you to the beginning of the MATH menu.

See “Math functions by category” on page 10-3 for details of the math functions.

H I N T When using the MATH menu, or any menu on the HP 39G/ 40G, 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 >$/3+$@ first. Just press the key that corresponds to the command’s beginning alpha character.

Program commands

Inactive keys

Pressing >6+,)7@CMDS displays the list of Program Commands. See “Programming commands” on page 15-14.

If you press a key that does not operate in the current context, a warning symbol like this ! appears. There is no beep.

Getting started 1-7