Matrix Commands - HP 40gs User Manual

Matrix commands

ADDCOL
ADDROW
DELCOL
DELROW
EDITMAT
RANDMAT
REDIM
21-24
The matrix commands take variables M0–M9 as
arguments.
Add Column. Inserts values into a column before
column_number in the specified matrix. You enter the
values as a vector. The values must be separated by
commas and the number of values must be the same as
the number of rows in the matrix name.
ADDCOL
name;[value
1
Add Row. Inserts values into a row before row_number in
the specified matrix. You enter the values as a vector. The
values must be separated by commas and the number of
values must be the same as the number of columns in the
matrix name.
ADDROW name;[value
Delete Column. Deletes the specified column from the
specified matrix.
DELCOL name;column_number:
Delete Row. Deletes the specified row from the specified
matrix.
DELROW name;row_number:
Starts the Matrix Editor and displays the specified matrix.
If used in programming, returns to the program when user
presses .
EDITMAT name:
Creates random matrix with a specified number of rows
and columns and stores the result in name
(name must be M0...M9). The entries will be integers
ranging from –9 to 9.
RANDMAT name;rows;columns:
Redimensions the specified matrix or vector to size. For a
matrix, size is a list of two integers {n1,n2}. For a vector,
size is a list containing one integer {n}.
REDIM name;size:
,...,value ];column_number:
n
,..., value
1
];row_number:
n
Programming