TMtx.FFT2D Method ()

Forward two-dimensional Fast Fourier Transformation from real/complex to complex.

Pascal

function FFT2D: TMtx; overload;

The transformation is applied in-place. The source matrix may be real or complex. The result will be always complex. The size of the calling matrix is not changed. (rows and cols will not chage).

See Also

FFT2DFromReal, IFFT2D, IFFT2DToReal

Example

var a: TMtx; begin CreateIt(a); try a.SetIt(2,4,False, [1, 2, 3, 4, -5, 6,-7, 8]); a.FFT2D; // result will be [(12,0), ( 0,4), (-28,0), (0,-4), ( 8,0), (-4,0), ( 24,0), (-4,0)] finally FreeIt(a); end; end;

TMtx Class, TMtx Members, MtxVec Namespace, FFT2D Method, Example, See Also

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