> On Jan 17, 2019, at 16:13, Peter Otten <[email protected]> wrote: > > David Rock wrote: > >> both a and nan are floats, so why does a == a work, but nan == nan >> doesn’t? > > It does "work", it's only produces a result you didn't expect ;) > Python just follows the standard here > > https://en.wikipedia.org/wiki/IEEE_754 > https://en.wikipedia.org/wiki/NaN#Comparison_with_NaN > > Also: > > https://stackoverflow.com/questions/10034149/why-is-nan-not-equal-to-nan
Touché :-) — David Rock [email protected] _______________________________________________ Tutor maillist - [email protected] To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
