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Help / WLanguage / WLanguage functions / Standard functions / Numeric values functions / Matrix functions
  • Error code
  • Matrix existence
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Stored procedures
Identifies the type of the last error caused by a Matxxx function (functions for matrix management).
Example
// Identification du type d'erreur
ResErreur = MatError("MaMatrice")
Syntax
<Result> = MatError(<Matrix>)
<Result>: Integer
  • 0 if no error occurred on the matrix,
  • an error code (value greater than 0) otherwise.
<Matrix>: Character string
Name of the matrix used, defined with MatCreate.
Remarks

Error code

The error codes that can occur on a matrix are as follows:
  • 8: Not enough memory available.
  • 9: The requested position is outside the matrix.
  • 10: Matrix name invalid.
  • 11: The matrices have different dimensions.
  • 12: The determinant is zero. Unable to calculate the inverse of the matrix.
Attention: Errors 9, 10 and 11 generate a WLanguage error. The application stops.
WEBDEV - Browser code In browser code, the error codes that can occur on a matrix are:
  • 1202: The requested position is outside the matrix.
  • 1200: Matrix name is invalid.
  • 1203: Dies with different dimensions.
  • 1206: The determinant is zero. Unable to calculate the inverse of the matrix.
Attention: Errors 1202, 1200 and 1203 generate a WLanguage error. The application stops.

Matrix existence

The matrix existence is not checked. To check the matrix existence, use MatExist.
Related Examples:
The Matrix functions 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...
The Matrix functions Unit examples (WINDEV Mobile): The Matrix functions
[ + ] Using matrices with the WLanguage functions: addition, multiplication, transposition, inversion...
Business / UI classification: Neutral code
Component: wd300mat.dll
See also
Minimum version required
  • Version 9
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Last update: 03/27/2025

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