mtimes

Matrix product of fi objects

Syntax

mtimes(a,b)


Description

mtimes(a,b) is called for the syntax a * b when a or b is an object.

a * b is the matrix product of a and b. A scalar value (a 1-by-1 matrix) can multiply any other value. Otherwise, the number of columns of a must equal the number of rows of b.

mtimes does not support fi objects of data type Boolean.

Note

For information about the fimath properties involved in Fixed-Point Designer™ calculations, see fimath Properties Usage for Fixed-Point Arithmetic and fimath ProductMode and SumMode.

For information about calculations using Fixed-Point Designer software, see the Fixed-Point Designer documentation.

Extended Capabilities

C/C++ Code Generation

Generate C and C++ code using MATLAB® Coder™.

Usage notes and limitations:

• Any non-fi input must be constant; that is, its value must be known at compile time so that it can be cast to a fi object.

• variable-size inputs are only supported when the SumMode property of the governing fimath is set to SpecifyPrecision or KeepLSB.

• For variable-size signals, you may see different results between the generated code and MATLAB^®.

  • In the generated code, the output for variable-size signals is computed using the SumMode property of the governing fimath.

  • In MATLAB, the output for variable-size signals is computed using the SumMode property of the governing fimath when both inputs are nonscalar. However, if either input is a scalar, MATLAB computes the output using the ProductMode of the governing fimath.

HDL Code Generation
Generate VHDL, Verilog and SystemVerilog code for FPGA and ASIC designs using HDL Coder™.

Version History

Introduced before R2006a