Modulo by Constant

Perform modulo operation with a constant denominator

Since R2021a

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Libraries:
Fixed-Point Designer

Description

The Modulo by Constant block performs the modulo operation (remainder after division) with a constant denominator.

The Modulo by Constant block uses an algorithm that is functionally similar to a Barrett Reduction. The division operation is computed via a multiplication by inverse, which generally results in better performance on embedded systems.

Examples

Optimize Lookup Tables for Periodic Functions

Reduce the size of lookup tables for functions with symmetry.

Open Script

Ports

Input

X — Dividend

real-valued scalar | vector | matrix | multidimensional array

Dividend, specified as a real-valued scalar, vector, matrix, or multidimensional array.

If X is a fixed-point data type, it must use binary-point scaling. Slope-bias representation is not supported for fixed-point data types.

Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | fixed point

Output

Y — Result of modulus operation

scalar | vector | matrix | multidimensional array

Result of modulus operation, returned as a scalar, vector, matrix, or multidimensional array.

Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | fixed point

Parameters

Denominator for Modulo Problem — Divisor

10 (default) | real-valued scalar | vector | matrix | multidimensional array

Divisor to use for the modulus operation, specified as a positive, real-valued, finite scalar, vector, matrix, or multidimensional array.

Programmatic Use

Block Parameter: Denominator

Type: character vector

Values: MATLAB® expression that evaluates to a positive, real-valued, finite fixed point or numeric value

Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | Boolean | fixed point

Default: '10'

Extended Capabilities

C/C++ Code Generation

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

Slope-bias representation is not supported for fixed-point data types.

Version History

Introduced in R2021a

R2023b: Support for vector and matrix input

The Modulo by Constant block now supports vector and matrix inputs.

R2023b: Modulo by Consant block supported for use in For Each Subsystem block

The Modulo by Consant block is supported for use inside a For Each Subsystem block.