HP 39gs Graphing manual Creating and storing matrices, Matrix Catalog keys, POLYROOT1,0,-1,0 M1

Creating and storing matrices

Matrix Catalog keys

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]) M1

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

M1 variable. M1 now contains the three roots of x3 – x = 0

The table below lists the operations of the menu keys in

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

and Clear ( CLEAR).

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 39gs or a disk drive.
	See “Sending and receiving aplets”
	on page 19-4.
	Receives a matrix from another
	hp 39gs or a disk drive. See
	“Sending and receiving aplets” on
	page 19-4.
	Clears the highlighted matrix.
CLEAR	Clears all matrices.
or	Moves to the end or the beginning
	of the catalog.

15-2 Matrices