On Mon, Oct 26, 2009 at 12:04 AM, Ralf Gommers
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.
There are docs now for all six exposed functions (cfft*, rfft*):
http://docs.scipy.org/numpy/docs/numpy.fft.fftpack_lite/ If anyone with knowledge of the differences between the C and Fortran versions could add a few notes at the above link, that would be great. Thanks, Ralf