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# docs.GL

GLSL 4
GLSL ES 3

# inverse

## Name

inverse — calculate the inverse of a matrix

## Declaration

`mat2 inverse(` | mat2 m`)`;

`mat3 inverse(` | mat3 m`)`;

`mat4 inverse(` | mat4 m`)`;

`dmat2 inverse(` | dmat2 m`)`;

`dmat3 inverse(` | dmat3 m`)`;

`dmat4 inverse(` | dmat4 m`)`;

## Parameters

`m`

  Specifies the matrix of which to take the inverse.

## Description

`inverse` returns the inverse of the matrix `m`. The values in the returned matrix are undefined if `m` is singular or poorly-conditioned (nearly singular).

## Version Support

| OpenGL Shading Language Version
--- | ---
Function Name | 1.10 | 1.20 | 1.30 | 1.40 | 1.50 | 3.30 | 4.00 | 4.10 | 4.20 | 4.30 | 4.40 | 4.50
inverse (float) | - | - | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔
inverse (double) | - | - | - | - | - | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔

## See Also

transpose, determinant

## Copyright

Copyright © 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. https://opencontent.org/openpub/.

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