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Home MathPack Matrix Classes TIntMatrix, TMatrix and TMat3D Properties NrOfColumns
See also: NrOfRows, NrOfLayers, Resize, ResizeAndClear, MakeValidColRange 

NrOfColumns


Unit:SDL_matrix
Class:TMatrix, TIntMatrix, TMat3D
Declaration:property NrOfColumns: longint;

The property NrOfColumns controls the number of columns of a matrix. The matrix elements are addressed starting with an index of 1. For the classes TIntMatrix and TMatrix the properties NrOfColumns and/or NrOfRows may be set to zero to create a 0-by-0 matrix.

Hint 1: If you have to adjust not only NrOfColumns but also NrOfRows then it is faster to use the method Resize.

Hint 2: In the Light Edition the number of cells is restricted to 2000 (NrOfColumns times NrOfRows).

Example: This property is used in the following example program (see http://www.lohninger.com/examples.html for downloading the code): covar

Last Update: 2023-Feb-06