[SciPy-user] Why are there two FFTs?
oliphant.travis at ieee.org
Fri Jan 6 13:09:53 CST 2006
>scipy.fftpack.* and numpy.dft.*
>are they different under the hood
Yes. scipy.fftpack can link to fftw and/or djbfft for example which can
be faster (but also have more install difficulties...). Also the
extension module is f2py generated.
numpy.dft always uses an f2c'd version of fftpack and a hand-written
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