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• Existence of result matrix
• Identical matrices
• Subtracting matrices
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MatAdd (Function)
In french: MatAdditionne
Adds two matrices of same dimensions (same number of rows and same number of columns).
// Add two matrices
ResAdd = MatAdd("MyMatrix1", "MyMatrix2", "MyResultMatrix")
Syntax
<Result> = MatAdd(<1st matrix> , <2nd matrix> , <Result matrix>)
<Result>: Boolean
• True if the addition was performed,
• False otherwise. To get the details of the error, use ErrorInfo with the errMessage constant.
<1st matrix>: Character string (with quotes)
Name of first matrix to add, defined by MatCreate.
<2nd matrix>: Character string (with quotes)
Name of second matrix to add, defined by MatCreate.
<Result matrix>: Character string (with quotes)
Name of the matrix that contains the result of the addition. This matrix is automatically created when the two matrices are added.
Remarks

Existence of result matrix

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

Identical matrices

If <1st matrix> is identical to <2nd Matrix>, the result matrix contains twice the source matrix.

Subtracting matrices

To subtract a matrix from another matrix, you must:
• multiply the matrix to subtract by -1 with MatFloatMultiply,
• add this matrix to the first matrix.
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
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 Last update: 06/07/2021Send a report | Local help
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