[Numpy-discussion] math.fsum() like ufunc for numpy

Nathaniel Smith njs at pobox.com
Mon Dec 2 13:07:02 EST 2013

I think that would be great. Technically what you'd want is a "gufunc".


On Mon, Dec 2, 2013 at 9:44 AM, Daniele Nicolodi <daniele at grinta.net> wrote:
> Hello,
> there would be interest in adding a floating point accurate summation
> function like Python's math.fsum() in the form of an ufunc to NumPy?
> I had a look at the algorithm
> (http://code.activestate.com/recipes/393090-binary-floating-point-summation-accurate-to-full-p/)
> and it looks quite straightforward to implement. I can try to submit a
> patch for it.
> Cheers,
> Daniele
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Nathaniel J. Smith
Postdoctoral researcher - Informatics - University of Edinburgh

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