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"Fast Fourier Transforms" icon

Fast Fourier Transforms

This is a free, open textbook that is part of the Connexions collection at Rice University. "This book uses an index map, a polynomial decomposition, an operator factorization, and a conversion to a filter to develop a very general and efficient description of fast algorithms to calculate the discrete Fourier transform (DFT). The work of Winograd is outlined, chapters by Selesnick, Pueschel, and Johnson are included, and computer programs are provided."

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