Hp 39g+ Manuel d'utilisateur télécharger pdf (Page 186)

100

101

13-8 Matrices

To divide the two matrices M1 and M2 that you created

for the previous example, press the following keys:

To invert a matrix You can invert a square matrix in HOME by typing the

matrix (or its variable name) and pressing x

–1

. Or you can use the matrix INVERSE command.

Enter INVERSE(matrixname) in HOME and press

To negate each

element

You can change the sign of each element in a matrix by

pressing before the matrix name.

Solving systems of linear equations

Example Solve the following linear system:

1. Open the Matrix

catalog and create a

vector.

MATRIX

2. Create the vector of the

constants in the linear

system.

5 7

3. Return to the Matrix

Catalog.

MATRIX

In this example, the

vector you created is

listed as M1.

2x 3y 4z++ 5

xyz–+7

4xy–2z+1

1 2 ... 181 182 183 184 185 186 187 188 189 190 191 ... 293 294

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Hp 39g+ Manuel d'utilisateur Page 186

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