Home | Sign in | English  Help WLanguage WLanguage functions Standard functions Functions for managing numeric values Matrix functions MatAdd Presentation Example Existence of result matrix Identical matrices Subtracting matrices Related examples See also  Functions for managing matrices MatAdd MatCopy MatCreate MatDelete MatDeterminant MatError MatExist MatFill MatFloatAdd MatFloatMultiply MatInvert MatMultiply MatNbColumn MatNbLine MatRead MatReadColumn MatReadLine MatStack MatTranspose MatWrite The matrices
• Existence of result matrix
• Identical matrices
• Subtracting matrices
WINDEV      WEBDEV    WINDEV Mobile        Others Adds two matrices of same dimensions (same number of rows and same number of columns). Syntax
<Result> = MatAdd(<1st matrix> , <2nd matrix> , <Result matrix>)
<Result>: Boolean
• True if the addition was performed,
• False otherwise. To find out the error details, use ErrorInfo associated 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...
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Component : wd250mat.dll
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• Version 9