MatAdd (Function)

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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).

Versions 15 and later

This function is now available for Android applications.

New in version 15

This function is now available for Android applications.

Versions 17 and later

This function is now available for iPhone/iPad applications.

New in version 17

This function is now available for iPhone/iPad applications.

Versions 18 and later

This function is now available in Android Widget mode.

This function is now available in Windows Store apps mode.

New in version 18

This function is now available in Android Widget mode.

This function is now available in Windows Store apps mode.

This function is now available in Android Widget mode.

This function is now available in Windows Store apps mode.

Versions 21 and later

This function is now available in Universal Windows 10 App mode.

New in version 21

This function is now available in Universal Windows 10 App mode.

Example

See additional examples

// Add two matrices
ResAdd = MatAdd("MyMatrix1", "MyMatrix2", "MyResultMatrix")

Syntax

<Result> = MatAdd(<Name of 1st Matrix> , <Name of 2nd Matrix> , <Name of 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.

<Name of 1st Matrix>: Character string (with quotes)

Name of first matrix to add, defined by MatCreate.

<Name of 2nd Matrix>: Character string (with quotes)

Name of second matrix to add, defined by MatCreate.

<Name of 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 <Name of 1st Matrix> is identical to <Name of 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...

Component : wd240mat.dll