TMtx.Size Method ([In] int, [In] int, [In] bool, [In] bool)

Sets the size of matrix.

Syntax

Visual Basic

public TMtx Size([In] int aRows, [In] int aCols, [In] bool AComplex, [In] bool aIsDouble);

Remarks

Set the calling matrix properties:

Rows = ARows,
Cols = ACols
and TMtxVec.Complex Complex= 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.

Note 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;

Group

Size Method

Links

TMtx Class, TMtx Members, Dew.Math Namespace, Size Method, Example, See Also

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