[SciPy-dev] Replacing scipy.fftpack with fftpack2

Pearu Peterson pearu at cens.ioc.ee
Sat Oct 26 13:01:58 CDT 2002

Greetings scipy-devels!

The latest version of fftpack2 is available at


It includes the following changes:

  * Renamed freqshift to fftshift
  * Renamed dftfreq to fftfreq
  * For even signal length, fftshift(f)[0] corresponds to Nyquist mode
    (like in Matlab).

I believe that fftpack2 is ready to replace scipy.fftpack and I would like
commit fftpack2 to Scipy CVS by the end of next week. I am actually
ready to do that now but the week is provided for review. Let me know if
you need more time for review.

After the commit, Scipy will require F2PY version 2.23.190-1367 or newer.


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