MatWrite (Function)

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Matrix existence
Matrix size

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MatWrite (Function)

In french: MatEcrit

Writes an element into a matrix.

Example

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// Assign 6 to the element (row 2, column 2)
ResWrite = MatWrite("MyMatrix", 6, 2, 2)

Syntax

<Result> = MatWrite(<Matrix> , <Value> , <Element row> , <Element column>)

<Result>: Boolean

True if the writing was performed,
False otherwise. To get more details on the error, use ErrorInfo with the errMessage constant.

<Matrix>: Character string

Name of the matrix to be used, defined with MatCreate.

<Value>: Real

Value given to the specified element.

<Element row>: Integer

Row of the element to initialize.

<Element column>: Integer

Column of the element to initialize.

Remarks

Matrix existence

A matrix must exist before it can be filled. To check the matrix existence, use MatExist.

Matrix size

The matrix size is managed dynamically. If the coordinates (row and columns) of the element to insert into the matrix are greater than the matrix dimension (total width and total height of the matrix), the element is added at the specified position. In this case, the matrix is filled with zeros.

For example:

MatWrite("MyArchive", 9, 2, 4)

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: wd270mat.dll