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.