Texas Instruments TI-83 PLUS - Manual (Page 268)

TI-83 Plus Matrices 265
Using Matrices with Expressions
Using a Matrix in an Expression
To use a matrix in an expression, you can do any of the following.
•
Copy the name from the
MATRX NAMES
menu.
•
Recall the contents of the matrix into the expression with y K
(Chapter 1).
•
Enter the matrix directly (see below).
Entering a Matrix in an Expression
You can enter, edit, and store a matrix in the matrix editor. You also can
enter a matrix directly in an expression.
To enter a matrix in an expression, follow these steps.
1. Press y [ [ ] to indicate the beginning of the matrix.
2. Press y [ [ ] to indicate the beginning of a row.
3. Enter a value, which can be an expression, for each element in the
row. Separate the values with commas.
4. Press y [ ] ] to indicate the end of a row.