Texas Instruments TI-83 PLUS - Manual (Page 262)

TI-83 Plus Matrices 259
2. Select the matrix you want to define. The
MATRX EDIT
screen is
displayed.
Accepting or Changing Matrix Dimensions
The dimensions of the matrix ( row × column ) are displayed on the top line.
The dimensions of a new matrix are 1 ×1 . You must accept or change the
dimensions each time you edit a matrix. When you select a matrix to
define, the cursor highlights the row dimension.
•
To accept the row dimension, press Í .
•
To change the row dimension, enter the number of rows (up to 99 ),
and then press Í .
The cursor moves to the column dimension, which you must accept or
change the same way you accepted or changed the row dimension.
When you press
Í , the rectangular cursor moves to the first matrix
element.