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 Home | Sign in | English  Help WLanguage WLanguage functions Standard functions Numeric values management functions Matrix functions MatWrite Presentation Example Matrix existence Matrix size 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
• Matrix existence
• Matrix size
WINDEV      WEBDEV    WINDEV Mobile        Others MatWrite (Function)
In french: MatEcrit
Writes an element into a matrix.
// 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 the details of the error, use ErrorInfo with the errMessage constant.
<Matrix>: Character string (with quotes)
Name of the matrix to use, 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...
Business / UI classification: Neutral code
Component: wd260mat.dll
Minimum version required
• Version 9
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