On Wed, Apr 27, 2011 at 10:53 AM, Guido van Rossum <gu...@python.org> wrote: .. > Maybe we should just call off the odd NaN comparison behavior?
+1 There was a long thread on this topic last year: http://mail.python.org/pipermail/python-dev/2010-March/098832.html I was trying to find a rationale for non-reflexivity of equality in IEEE and although it is often mentioned that this property simplifies some numerical algorithms, I am yet to find an important algorithm that would benefit from it. I also believe that long history of suboptimal hardware implementations of nan arithmetics has stifled the development of practical applications. High performance applications that rely on non-reflexivity will still have an option of using ctypes.c_float type or NumPy. _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
