Texas Instruments TI-83 PLUS - Manual (Page 261)

TI-83 Plus Matrices 258
Defining a Matrix
What Is a Matrix?
A matrix is a two-dimensional array. You can display, define, or edit a
matrix in the matrix editor. The
TI-83 Plus has 10 matrix variables, [A]
through [J] . You can define a matrix directly in an expression. A matrix,
depending on available memory, may have up to 99 rows or columns.
You can store only real numbers in
TI-83 Plus matrices.
Selecting a Matrix
Before you can define or display a matrix in the editor, you first must
select the matrix name. To do so, follow these steps.
1. Press y
>
| to display the
MATRX EDIT
menu. The dimensions
of any previously defined matrices are displayed.