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% File src/library/stats/man/fft.Rd
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% File src/library/stats/man/fft.Rd
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% Part of the R package, https://www.R-project.org
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% Part of the R package, https://www.R-project.org
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% Copyright 1995-2017 R Core Team
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% Copyright 1995-2018 R Core Team
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% Distributed under GPL 2 or later
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% Distributed under GPL 2 or later
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\name{fft}
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\name{fft}
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\alias{fft}
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\alias{fft}
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\alias{mvfft}
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\alias{mvfft}
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}
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}
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\source{
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\source{
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  Uses C translation of Fortran code in Singleton (1979).
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  Uses C translation of Fortran code in Singleton (1979).
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}
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}
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\references{
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\references{
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  Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988)
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  Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988).
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  \emph{The New S Language}.
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  \emph{The New S Language}.
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  Wadsworth & Brooks/Cole.
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  Wadsworth & Brooks/Cole.
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  Singleton, R. C. (1979)
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  Singleton, R. C. (1979).
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  Mixed Radix Fast Fourier Transforms,
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  Mixed Radix Fast Fourier Transforms,
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  in \emph{Programs for Digital Signal Processing},
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  in \emph{Programs for Digital Signal Processing},
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  IEEE Digital Signal Processing Committee eds.
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  IEEE Digital Signal Processing Committee eds.
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  IEEE Press.
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  IEEE Press.
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  Cooley, James W., and Tukey, John W. (1965)
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  Cooley, James W., and Tukey, John W. (1965).
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  An algorithm for the machine calculation of complex Fourier series,
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  An algorithm for the machine calculation of complex Fourier series,
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  \emph{Math. Comput.} \bold{19}(90), 297--301.
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  \emph{Mathematics of Computation}, \bold{19}(90), 297--301.
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  \url{https://dx.doi.org/10.1090/S0025-5718-1965-0178586-1}
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  \doi{10.2307/2003354}.
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}
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}
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\seealso{
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\seealso{
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  \code{\link{convolve}}, \code{\link{nextn}}.
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  \code{\link{convolve}}, \code{\link{nextn}}.
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}
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}
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\examples{
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\examples{