Help / WLanguage / WLanguage functions / Standard functions / Numeric values functions / Matrix functions
  • Matrix existence
  • Matrix size
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Stored procedures
Writes an element into a matrix.
// Assign 6 to the element (row 2, column 2)
ResWrite = MatWrite("MyMatrix", 6, 2, 2)
<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.

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:
The Matrix functions 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...
The Matrix functions Unit examples (WINDEV Mobile): The Matrix functions
[ + ] Using matrices with the WLanguage functions: addition, multiplication, transposition, inversion...
Business / UI classification: Neutral code
Component: wd290mat.dll
Minimum version required
  • Version 9
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Last update: 06/22/2023

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