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TI-83 Plus Math Menu Functions

Press [MATH] to accesses the Math menu on the TI-83 Plus graphing calculator. This menu contains four submenus: MATH, NUM, CPX, and PRB. Use the

image0.png

keys to get from one submenu to the next, and back again.

The Math MATH submenu contains the general mathematical functions such as the cubed root function. It also contains the calculator’s Equation Solver that, as you would expect, is used to solve equations. The Math NUM submenu contains the functions usually associated with numbers, such as the least common multiple function.

The Math CPX submenu contains functions normally used with complex numbers. The Math PRB submenu contains the probability and random-number functions.

How to use TI-83 Plus Math menu functions

Most functions housed in the Math menu require that the argument be entered after entering the function. Such functions are easily recognizable by the parenthesis following the name of the function; the cube-root function,

image1.png

is an example. With one exception, functions in the Math menu that have no parenthesis at the end of their names require that the argument be entered before the function is entered. The cube function is an example of such a function. (The exception is the xth root function,

image2.png

This function requires that the root be entered first, then the

image3.png

function, and then the argument.)

How to insert a TI-83 Plus Math menu function

Math menu functions are usually inserted into arithmetic expressions entered on the Home screen, or into definitions of functions in the Y= editor. Pressing [2nd][MODE] puts you in the Home screen, and pressing [Y=] puts you in the Y= editor. The Y= editor is used to define functions you want to graph.

To insert a Math menu function into an expression, follow these steps:

  1. If necessary, use

    image4.png

    to place the cursor where you want to insert the function.

  2. Press [MATH].

  3. Use

    image5.png

    to select the appropriate submenu of the Math menu.

  4. Enter the number of the function or use

    image6.png

    to highlight the number of the function and then press [ENTER].

  5. If necessary, complete the expression.

    image7.jpg
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