15-2 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])M1
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).  
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 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.
HP 39gs English.book  Page 2  Wednesday, December 7, 2005  11:24 PM