Operation Manual

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Operating the TI

82 1-13

8201OPER.DOC TI-82, Chapter 1, English Bob Fedorisko Revised: 02/09/01 12:18 PM Printed:

02/09/01 12:35 PM Page 13 of 22

Storing and Recalling Variable Values

Values are stored to and recalled from memory using variable names. When an

expression containing the name of a variable is evaluated, the value of the

variable at that time is used.

Storing Values in a Variable

You can store a value to a variable from the Home screen or a program

using the

key. Begin on a blank line.

1. Enter the value that you want to store (which can be an expression).

2. Press

. The symbol

is copied to the cursor location.

3. Press

, then the letter of the variable to which you want to store

the value.

4. Press

. If you entered an expression, it is evaluated. The value is

stored in the variable.

Displaying a Variable Value

To display the value of a variable, enter the name on a blank line on the

Home screen, and press

RCL (Recall)

You can copy variable contents to the current cursor location. Press

RCL

, and then enter the name of the variable in one of the following ways:

Press

and then the letter of the variable.

Press

and the name of the list.

Press



and select the name of the matrix.

Press

VARS

and select the type and name of the function.

Press



and select the name of the program (in the program editor

only).

You can edit the characters copied to the expression without affecting the

value in memory.

Note: When an error (such as a variable with no assigned value) occurs on

the

RCL

line, the name is cleared automatically for you to enter the correct

name. To leave

RCL

without recalling a value, press

‘