Matrix.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 See cref="Complex"/> = AComplex.

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

The floating point precision is defined with aIsDouble.

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, Complex

Example

var A: Matrix; begin A.Size(2,1,True, true); // 2x1 complex double matrix A.SetZero; // A becomes: // [0,0] // [0,0] end;

Matrix Record, Matrix Members, MtxExpr Namespace, Size Method, Example, See Also

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