Function: dfracft

DFRACFT  Discrete Fractional Fourier transform
  Usage:  V=dfracft(f,a,p);
          V=dfracft(f,a);

  DFRACFT(f,a) computes the discrete fractional Fourier Transform of the
  signal f to the power a. For a=1 it corresponds to the ordinary
  discrete Fourier Transform. If f is multi-dimensional, the
  transformation is applied along the first non-singleton dimension.

  DFRACFT(f,a,dim) does the same along dimension dim.   

  DFRACFT(f,a,[],p) or DFRACFT(f,a,dim,p) allows to choose the order
  of approximation of the second difference operator (default: p=2*).


  References:
    A. Bultheel and S. Martinez. Computation of the Fractional Fourier
    Transform. Appl. Comput. Harmon. Anal., 16(3):182--202, 2004.
    
    H. M. Ozaktas, Z. Zalevsky, and M. A. Kutay. The Fractional Fourier
    Transform. John Wiley and Sons, 2001.
    

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

See also: ffracft, dft, hermbasis, pherm.

Package: ltfat