hp40g+.book Page 1 Friday, December 9, 2005 1:03 AM

13

Using mathematical functions

Math functions

The HP 40gs contains many math functions. The functions are grouped in categories. For example, the Matrix category contains functions for manipulating matrices. The Probability category (shown as Prob. on the MATH menu) contains functions for working with probability.

To use a math function in HOME view, you enter the function onto the command line, and include the arguments in parentheses after the function. You can also select a math function from the MATH menu.

Note that this chapter covers only the use of mathematical functions in HOME view. The use of mathematical functions in CAS is described in Chapter14, “Computer Algebra System (CAS)”.

The MATH menu

The MATH menu provides access to math functions, physical constants, and programming constants. You can also access CAS commands.

The MATH menu is organized by category. For each category of functions on the left, there is a list of function names on the right. The highlighted category is the current category.

•When you press , you see the menu list of Math categories in the left column and the corresponding functions of the highlighted category

in the right column. The menu key indicates that the MATH FUNCTIONS menu list is active.

Using mathematical functions

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