Web Directory

» A Short Demonstration Version of the FFT
   Source code of a subroutine to transform (forward or inverse) a one-dimensional complex array in place.
   http://members.tripod.com/michaelgellis/dsp/pgm05.html

» Ernst Mayer
   Fortran 90 codes for Fast Fourier Transforms and Discrete Weighted Transforms, for use in number theory research.
   http://hogranch.com/mayer/resume.html

» Fast Fourier Transform code
   By James Van Buskirk.
   http://home.comcast.net/~kmbtib/index.html

» Jörgs Useful and Ugly FFT page
   Code and links in Fortran and C for the Fast Fourier Transform.
   http://www.jjj.de/fft/fftpage.html

» Pipelined phase-rotation FFT
   By David O'Halloran. The Welchel phase-rotation FFT is a new form of the fast Fourier transform (FFT) that replaces data movement at runtime with equivalent multiplications by precomputed constants. The result is an FFT that is easy to pipeline.
   http://www.cs.cmu.edu/afs/cs.cmu.edu/project/iwarp/member/fx/public/www/phase1.html

» Romo's Free Software
   OFFT, "Outrageously Fast Fortran Transpose", and BFFFT, "Blazingly Fast FFT, 2-Dimensional Vectorized Fast Fourier Transform" written in Fortran 90.
   http://romo661.free.fr/