Computes a real 1- or 2-D Fast Fourier transform.
rfft
Computes the RFFT of x, scaled by \(\frac{1}{(L*M)}\).
This uses a Temperton Fast Fourier algorithm.
If \(N\) or \(K\) is not a power of 2, x will be padded out with zeros before computing the transform.
See also
Functions rffti(), fft(), ffti(), fftm(), fftmi()
rffti()
fft()
ffti()
fftm()
fftmi()