[Numpy-discussion] fftpack_lite question

Ralf Gommers ralf.gommers@googlemail....
Sun Oct 25 18:04:29 CDT 2009


On Sun, Oct 25, 2009 at 11:51 PM, Charles R Harris <
charlesr.harris@gmail.com> wrote:

>
>
> 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.
>

Okay, thanks.  I'll start with the Fortran docs then, and someone familiar
with the differences could then easily throw in a few notes on that.

Ralf

Chuck
>
>
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