Fast Fourier Transforms Source Code Fortran Languages

Fast Fourier Transforms

Fortran codes for the Fast Fourier Transform.

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• - Translation of fftpack and vfftpk to Fortran 95 by Simon Clarke.
  
• - 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.
  
• - Fortran 90 codes for Fast Fourier Transforms and Discrete Weighted Transforms, for use in number theory research.
  
• - Code and links in Fortran and C for the Fast Fourier Transform.
  
• - By James Van Buskirk.
  
• - OFFT, "Outrageously Fast Fortran Transpose", and BFFFT, "Blazingly Fast FFT, 2-Dimensional Vectorized Fast Fourier Transform" written in Fortran 90.
  
• - Little known algorithm for calculating the FFT of a series of any length. Based upon Applied Statistics algorithms 117 & 83.
  
  

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