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The re-discovery of the fast Fourier transform algorithm


The discovery of the fast Fourier transform (FFT) algorithm and the subsequent development of algorithmic and numerical methods based on it have had an enormous impact on the ability of computers to process digital representations of signals, or functions. At first, the FFT was regarded as entirely new. However, attention and wide publicity led to an unfolding of its pre-electronic computer history going back to Gauss. The present paper describes the author's own involvement and experience with the FFT algorithm.

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The author is grateful for permission from the Association for Computing Machinery to allow the present paper to bear some similarity with the paper,How the FFT Gained Acceptance, ref. [28]

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Cooley, J.W. The re-discovery of the fast Fourier transform algorithm. Mikrochim Acta 93, 33–45 (1987).

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Key words

  • FFT
  • fast Fourier transform
  • DFT
  • discrete Fourier transform