HP 40G manual Vars menu, To use variables, Calculations, 65 @$/3+$@A 175@

To use variables	You can use variables in calculations. The calculator
in calculations	substitutes the variable’s value in the calculation:
	65 >￿@>$/3+$@A >(17(5@

The VARS menu

You use the VARS menu to access all variables in the calculator. The VARS menu is organised by category. For each variable category in the left column, there is a list of variables in the right column. You select a variable category and then select a variable in the category.

1.Open the VARS menu.

>9$56@

2.Use the arrow keys or press the alpha key of the first letter in the category to select a variable category.

For example, to select the Matrix category, press >￿@.

Note: In this instance, there is no need to press the ALPHA key.

3.Move the highlight to the variables column.

*A,

4.Use the arrow keys to select the variable that you want. For example, to select the M2 variable, press *e,.

*e,

11-4 Variables and memory management