TMtx.Size Method (integer, integer, boolean, boolean)

Sets the size of matrix.

Pascal

function Size(const ARows: integer; const ACols: integer; const aComplex: boolean; const aIsDouble: boolean): TMtx; overload;

Description

Set the calling matrix properties:

Rows = ARows,
Cols = ACols
and TMtxVec.ComplexComplex= AComplex
TMtxVecBase.IsDouble = aIsDouble

Calling the Size method does not preserve the contents of the matrix. Use the Resize method, if you want to preserve existing values.

Notes

The Size method performs an out-of-memory safe resize, if the matrix already has memory allocated. This prevents out of memory message for example when redefining the size of the matrix from single column to single row:

A.Rows := 10000; // matrix size = 0 A.Cols := 1; // matrix size = 10000 // ... A.Cols := 10000; // matrix size = 100 000 000 (problems here) A.Rows := 1; // matrix size = 10 000

See Also

Rows, Cols, TMtxVec.Complex

Example

var A: TMtx; begin CreateIt(A); try A.Size(2,1,True, mvDouble); // 2x1 complex matrix A.SetZero; // A becomes: // [0,0] // [0,0] finally FreeIt(A); end; end;

TMtx Class, TMtx Members, MtxVec Namespace, Size Method, Example, See Also

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