<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jul 25, 2019 at 11:08 AM Eric Larson <<a href="mailto:larson.eric.d@gmail.com">larson.eric.d@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">I plan to merge Peter's PR this coming Monday unless there are objections.</div></blockquote><div><br></div><div>Sounds good to me.</div><div><br></div><div>Cheers,<br></div><div>Ralf</div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><br></div><div>Eric</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jul 25, 2019 at 11:00 AM Peter Bell <<a href="mailto:PeterBell10@live.co.uk" target="_blank">PeterBell10@live.co.uk</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p class="MsoNormal">Hello all,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">As of <a href="https://github.com/scipy/scipy/pull/10493" target="_blank">gh-10493</a>, pypocketfft now implements the discrete sine and cosine transforms meaning it is a complete replacement for the fortran FFTPACK library. In
<a href="https://github.com/scipy/scipy/pull/10507" target="_blank">gh-10507</a>, I have proposed removing the fortran code from scipy completely and having scipy.fftpack depend on scipy.fft.
<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">This means that scipy.fftpack will now see some of the additional
<a href="https://github.com/scipy/scipy/wiki/Release-note-entries-for-SciPy-1.4.0#scipyfft-added" target="_blank">
benefits of scipy.fft</a> such as: long double transforms, GIL release, bluestein’s algorithm, improved accuracy and improved multi-dimensional transform performance.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">However, there may be some cases where this affects users. For example, it will break anyone importing the private scipy.fftpack._fftpack submodule and the DCT and DST type-I are now about two times slower (but orders of magnitude more
accurate).<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Regards,<u></u><u></u></p>
<p class="MsoNormal">Peter<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
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