DSP Blockset

Matrix Product

Multiply the elements of a matrix along rows or columns.

Library

Math Functions / Matrices and Linear Algebra / Matrix Operations

Description

The Matrix Product block multiplies the elements of an M-by-N input matrix u along either the rows or columns.

When the Multiply along parameter is set to Rows, the block multiplies across the elements of each row and outputs the resulting M-by-1 matrix. A length-N 1-D vector input is treated as a 1-by-N matrix.

This is equivalent to

• y = prod(u,2)        % Equivalent MATLAB code
  

When the Multiply along parameter is set to Columns, the block multiplies down the elements of each column and outputs the resulting 1-by-N matrix. A length-M 1-D vector input is treated as a M-by-1 matrix.

This is equivalent to

• y = prod(u)          % Equivalent MATLAB code
  

The output has the same frame status as the input.

Dialog Box

Multiply along

The dimension of the matrix along which to multiply, row or column.

Supported Data Types

• Double-precision floating point
• Single-precision floating point

To learn how to convert to the above data types in MATLAB and Simulink, see Supported Data Types and How to Convert to Them.

See Also

Matrix Multiply	DSP Blockset
Matrix Square	DSP Blockset
Matrix Sum	DSP Blockset
prod	MATLAB

Also see Matrix Operations for a list of all the blocks in the Matrix Operations library.

Matrix Multiply

Matrix Scaling