Function: fftreal

FFTREAL   FFT for real valued input data
  Usage: f=fftreal(f);
         f=fftreal(f,N,dim);

  FFTREAL(f) computes the coefficients corresponding to the positive
  frequencies of the FFT of the real valued input signal f.
  
  The function takes exactly the same arguments as fft. See the help on
  fft for a thorough description.

Url: http://ltfat.github.io/doc/fourier/fftreal.html

See also: ifftreal, dft.

Package: ltfat