On Sun, Sep 13, 2015 at 11:53 AM, <[email protected]> wrote: > I am learning the new FFTW syntax of version 0.4.0. > > One thing that surprised me is the possibility of using > inv(plan1) for ifft, where plan1 was created for fft by plan_fft. > > Could you confirm please, that this method is just as efficient > as creating a separate plan2 for ifft by a separate plan_ifft call?
When I measured it right around when it was merged, the difference between `ifft_plan * ary` and `fft_plan \ ary` are smaller than what I can measure. (and both of them are much faster compare to the old one)
