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  • Existence of matrix
  • Managing errors
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Stored procedures
Returns the number of columns found in a matrix. The number of matrix columns changes dynamically. It corresponds to the number of initialized columns. The number of columns can be modified by:
// Number of columns?
ResNbColumns = MatNbColumn("MyMatrix")
Syntax
<Result> = MatNbColumn(<Matrix Name>)
<Result>: Integer
Number of columns found in the specified matrix.
<Matrix Name>: Character string (with quotes)
Name of matrix to use, defined by MatCreate.
Remarks

Existence of matrix

The matrix existence is not checked. To check the matrix existence, use MatExist.

Managing errors

Caution: MatNbColumn returns no error code. To find out whether errors have been generated when returning the number of columns, use MatError. To find out the error details, use ErrorInfo associated with the errMessage constant.
Component : wd240mat.dll
Minimum version required
  • Version 9
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