Hp Prime Graphing Calculator Manuel d'utilisateur télécharger pdf (Page 478)

100

101

474 Matrices

To invert a matrix You can invert a square matrix in Home view by typing the

matrix (or its variable name) and pressing

SnE. You can also use the INVERSE

command in the Matrix category of the Math menu.

To negate each

element

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

pressing

Q, entering the matrix name, and pressing

Solving systems of linear equations

You can use matrices to solve systems of linear equations,

such as the following:

2x+3y+4z=5

x+y–z=7

4x–y+2z=1

In this example we will use matrices M1 and M2, but you

could use any available matrix variable name.

1. Open the Matrix

Catalog, clear M1,

choose to create a

vector, and open the

Matrix Editor:

[press = or \ to

select M1]

2. Create the vector of

the three constants in

the linear system.

E7E1

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Hp Prime Graphing Calculator Manuel d'utilisateur Page 478

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