About commands Matrix commands are listed in the CMDS menu (>6+,)7@￿

CMDS), in the matrix category.

See “Matrix commands” on page 15-23 for details of the matrix commands available for use in programming.

Functions differ from commands in that a function can be used in an expression. Commands cannot be used in an expression.

Argument conventions

For row# or column#, supply the number of the row (counting from the top, starting with 1) or the number of the column (counting from the left, starting with 1).

The argument matrix can refer to either a vector or a matrix.

Matrix functions

COLNORM

Column Norm. Finds the maximum value (over all columns)

 

of the sums of the absolute values of all elements in a column.

 

COLNORM(matrix)

COND

Condition Number. Finds the 1-norm (column norm) of a

 

square matrix.

 

COND(matrix)

CROSS

Cross Product of vector1 with vector2.

 

CROSS(vector1, vector2)

DET

Determinant of a square matrix.

 

DET(matrix)

DOT

Dot Product of two arrays, matrix1 matrix2.

 

DOT(matrix1, matrix2)

12-10

Matrices