The product of matrix elements in a specified dimension.

Syntax

P = Prod(M, DIM)

Arguments

Name

Description

M

A vector or a matrix.

DIM

(optional)

The dimension on which to multiply. For products by column, dim = 1. For products by row, dim = 2. If m is a matrix, dim defaults to 1. If m is a vector and dim is omitted, the product of the elements is returned, regardless of the vector orientation.

Output

Name

Description

P

The product of the row/column vector elements. If m is  a matrix, p will be either a row vector or a column vector, depending on the value of dim.

Example

Find the column products of a matrix.

Syntax

P = Prod([1,2;3,4], 1)

Result

P = [3, 8]