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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
3
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.
hp40g+.book Page 2 Friday, December 9, 2005 1:03 AM