IsSymmetric

R2026b

Check if matrix is symmetric or skew-symmetric

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IsSymmetric block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
Simulink / Matrix Operations

Description

The IsSymmetric block determines if the input is a symmetric or skew-symmetric matrix.

Ports

Input

Port_1 — Input matrix

matrix

Input, specified as a matrix.

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

Output

Port_1 — Symmetric or skew-symmetric matrix

real scalar boolean

A symmetric or skew-symmetric matrix, returned as a real scalar boolean.

Data Types: Boolean

Parameters

Mode — Whether matrix is symmetric or skew-symmetric

Symmetric (default) | Skew-Symmetric

Identify the matrix as Symmetric or Skew-Symmetric.

Programmatic Use

Block Parameter: Mode

Type: character vector

Values: 'Symmetric' | 'Skew-Symmetric'

Default: 'Symmetric'

Block Characteristics

Data Types	Boolean | double | fixed point | half | integera | single
Direct Feedthrough	yes
Multidimensional Signals	no
Variable-Size Signals	no
Zero-Crossing Detection	no
a This block only supports signed integer types for the skew-symmetric mode.

Programmatic Use: Add Block

To add the block programmatically, use the add_block function with one of these library block paths as the source.

"simulink/Matrix Operations/IsSymmetric"

Example: add_block("simulink/Matrix Operations/IsSymmetric","myModel/myBlock",MakeNameUnique="on")

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2021b