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• Existence of inverse matrix
• Identical matrices
WINDEV
WEBDEV
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MatInvert (Function)
In french: MatInverse
Inverts a square matrix.
Remark: The inverse matrix can be calculated:
• from a square matrix (the number of rows is equal to the number of columns)
• if the determinant (returned by MatDeterminant) is not null.
Versions 25 and later
This function is now available in browser code.
New in version 25
This function is now available in browser code.
This function is now available in browser code.
// Inversion d'une matrice carrée
ResInversion = MatInvert("MaMatrice", "MaMatriceInversée")
Syntax
<Result> = MatInvert(<Matrix to invert> , <Inverse matrix>)
<Result>: Boolean
• True if the inversion was performed,
• False otherwise. To find out the name of the error, use the function ErrorInfo with the constant errMessage.
<Matrix to invert>: Character string (with quotes)
Name of the matrix to invert, defined by MatCreate.
<Inverse matrix>: Character string (with quotes)
Name of the inverse matrix, automatically created during the inversion.
Remarks

Existence of inverse matrix

The matrix existence is not checked. This matrix is overwritten if it existed beforehand. To check the matrix existence, use MatExist.

Identical matrices

A WLanguage error occurs if <Matrix to invert> and <Inverse matrix> are identical.
Related Examples:
 Unit examples (WINDEV): The Matrix functions [ + ] Using matrices with the WLanguage functions.This example, powered by WINDEV, is used to perform calculations on matrices: addition, multiplication, transposition, inversion...
 Unit examples (WINDEV Mobile): The Matrix functions [ + ] Using matrices with the WLanguage functions: addition, multiplication, transposition, inversion...
Business / UI classification: Neutral code
Component: wd260mat.dll
Minimum version required
• Version 9