Texas Instruments TI-73 EXPLORER Benutzerhandbuch

     Chapter 1: Operating the TI

N73

7301ENG.DOC   CH1 Operating the TI-73, English   Julie Hewlett   Revised: 07/29/98 11:55 AM   Printed: 05/19/99

8:58 AM   Page 20 of 24

 

Storing Values to a Variable   X

You can store values or expressions that result in one value or

lists to a one-letter variable or a system variable (types are

listed below) to save for later use. Also, you can save a result

for later use by storing 

 to a variable before you evaluate

another expression.
When an expression containing the name of a variable is

evaluated, the value of the variable at that time is used. You

can enter and use several types of data for variables, including

real numbers, lists, functions, statistical plots, and graph

pictures.
Variable names cannot be the same as a name that is

preassigned by the TIN73. These include built-in functions

such as 

 , instructions such as 

 , and system variables

such as 

.

Variable Type

Names

Real Numbers

, 

, …, 

(- t)

Lists—Numerical

and Categorical

, 

, 

, 

, 

, 

, and any user-defined

list names (- v 

)

Functions

, 

, 

, 

(- } 

)

Stat Plots

, 

, 

(- e from the

Program editor)

Graph Pictures

, 

, 

(- } 

)

System Variables

, 

, … (- } 

)

Store a value to either a system variable or a letter variable

from the Home screen or a program using the X key. Begin

on a blank line and follow these steps.