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100

101

18-2 Matrices

Creating and storing matrices

You can create, edit,

delete, send, and receive

matrices in the Matrix

catalog.

To open the Matrix

catalog, press

MATRIX.

You can also create and store matrices—named or

unnamed—-in HOME. For example, the command:

POLYROOT([1,0,–1,0])XM1

stores the root of the complex vector of length 3 into the

M1 variable. M1 now contains the three roots of

Matrix Catalog

keys

The table below lists the operations of the menu keys in

the Matrix Catalog, as well as the use of Delete ( )

and Clear ( CLEAR).

To create a matrix

in the Matrix

Catalog

1. Press MATRIX to open the Matrix Catalog. The

Matrix catalog lists the 10 available matrix variables,

M0 to M9.

x–0=

Key Meaning

Opens the highlighted matrix for

editing.

Prompts for a matrix type, then

opens an empty matrix with the

highlighted name.

Transmits the highlighted matrix to

another HP 40gs or a disk drive.

See.

Receives a matrix from another

HP 40gs or a disk drive. See .

Clears the highlighted matrix.

CLEAR Clears all matrices.

or Moves to the end or the beginning

of the catalog.

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