To divide the two matrices M1 and M2 that you created for the previous example, press the following keys:
M1 
M2 
To invert a matrix You can invert a square matrix in HOME by typing the
matrix (or its variable name) and pressing 
. Or you can use the matrix INVERSE command. Enter INVERSE(matrixname) in HOME and press
.
To negate each | You can change the sign of each element in a matrix by | |
element | pressing | before the matrix name. |
Example | Solve the following linear system: | ||
| 2x + 3y + 4z | = 5 | |
| x + y – z | = | 7 |
| 4x – y + 2z | = | 1 |
1.Open the Matrix catalog and create a vector.
MATRIX 
2.Create the vector of the constants in the linear system.
5
7 
1
3.Return to the Matrix Catalog.
MATRIX
In this example, the vector you created is listed as M1.
Matrices |