About Matrices - TI -82 Manual Book

About Matrices

On the Home screen or in a program, you can use, enter, store, and display
matrices.
Using a Matrix in an Expression
To use a matrix in an expression, you may:
¦
Copy the name from the
Recall the contents of the matrix into the expression with y [
¦
(Chapter 1).
¦
Enter the matrix directly (see below).
Entering a Matrix in an Expression
You can enter, edit, and store a matrix in the
enter a matrix directly in an expression.
1. Press y ã
2. Press y ã
3. Enter a value (which can be an expression) for each element in the row,
separated by commas.
4. Press y ã
5. Repeat steps 2 through 4 to enter all of the rows.
6. Press y ã
Note: The closing
preceding
[[ element
1,1
The expression is evaluated when the entry is executed. Commas are required
on entry to separate elements, but are not displayed on output.
10-8 Matrices
MATRIX NAMES
ä to indicate the beginning of the matrix.
ã
ä to indicate the beginning of a row.
ã
ä to indicate the end of a row.
ä
ä to indicate the end of the matrix.
ä
]] is not necessary at the end of an expression or
!
.
, . . . , element ] . . .
1,n
menu.
MATRIX
[ element , . . . , element
m
]
RCL
editor. You also can
]]
m,n