On 25 February 2017 at 12:43, Nathaniel Smith <n...@pobox.com> wrote:
> FWIW, numpy provides all of the following as separate functions: > > * an isclose equivalent > * nextafter > * a function for counting the number of ulps between two floats > * a function for checking that two floats differ by at most N ulps > "Does NumPy offer it?" is a useful data point when asking "Is this feature useful for numerical analysis?", so it'd helpful to know that it does have them. > I'm not enough of an expert on numerical analysis to have an opinion on > how useful these would be for Python itself. They certainly are part of a > complete IEEE754 implementation, and useful for exploring the details of > how floats work, if nothing else. > It seems like a reasonable thing to expose to me, rather than asking folks to derive their own equivalents based on the information in sys.float_info. Cheers, Nick. -- Nick Coghlan | ncogh...@gmail.com | Brisbane, Australia
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