Texas Instruments TI-89 Manuel D’Utilisation

Data/Matrix Editor

 521

 If you do not type a variable name, your calculator displays the Home screen.

4. Press 

¸ (after typing in an input box such as 

, press 

¸ twice) to 

create and display an empty variable in the Data/Matrix Editor. 

Using the Current Variable

Using the Current Variable

Using the Current Variable

Using the Current Variable

You can leave the Data/Matrix Editor and go to another application at any time. To return 
to the variable that was displayed when you left the Data/Matrix Editor, launch 
Data/Matrix Editor again and select 

.

Variable

Type a new variable name.
If you specify a variable that already exists, an error 
message will be displayed when you press 

¸

. When 

you press 

N

 or 

¸

 to acknowledge the error, the 

NEW dialog box is redisplayed.

Row dimension
and
Col dimension

If Type = Matrix, type the 
number of rows and columns in 
the matrix.