[Numpy-discussion] fftpack_lite question

Charles R Harris charlesr.harris@gmail....
Sun Oct 25 17:51:24 CDT 2009


On Sun, Oct 25, 2009 at 4:21 PM, Ralf Gommers
<ralf.gommers@googlemail.com>wrote:

> Hi all,
>
> Can anyone tell me if fftpack_lite is an exact C translation of the fftpack
> Fortran code? Or at least close enough that the signature, parameter
> descriptions and algorithm are the same?
>
> If so, I can use the fftpack Fortran sources (which have useful comments)
> to write docs for fftpack_lite funcs (rfft* and cfft*).
>
>
fft_pack is an interface to a c translation of fftpack. IIRC, it adds some
stuff like zerofill and such so it isn't a1-1 matchup. I think it is pretty
close, though.

Chuck
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