-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 03/25/2010 12:22 PM, Nick Coghlan wrote: > "Not a Number" is not a single floating point value. Instead each > instance is a distinct value representing the precise conditions that > created it. Thus, two "NaN" values x and y will compare equal iff they > are the exact same NaN object (i.e. "if isnan(x) then x == y iff > x is y". > > As stated above, such a change would allow us to restore reflexivity > (eliminating a bunch of weirdness) while still honouring the idea of NaN > being a set of values rather than a single value.
Sounds good. But IEEE 754 was created by pretty clever guys and sure they had a reason for define things in the way they are. Probably we are missing something. - -- Jesus Cea Avion _/_/ _/_/_/ _/_/_/ j...@jcea.es - http://www.jcea.es/ _/_/ _/_/ _/_/ _/_/ _/_/ jabber / xmpp:j...@jabber.org _/_/ _/_/ _/_/_/_/_/ . _/_/ _/_/ _/_/ _/_/ _/_/ "Things are not so easy" _/_/ _/_/ _/_/ _/_/ _/_/ _/_/ "My name is Dump, Core Dump" _/_/_/ _/_/_/ _/_/ _/_/ "El amor es poner tu felicidad en la felicidad de otro" - Leibniz -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQCVAwUBS6tZfZlgi5GaxT1NAQJZtQP/bxi6l5TaiiOzv+no6cLaVXbkWXb9v6OL jmejzrlAosXzzd/4CuinN2mdFs7bd9Y3O9gHoQ2nUfbfWQc4SwxpxjK67j10PODJ MMz7wXgz075A8S7gUlpwWznByU2VfAys6ZVxZCv/uogW9SXIHqEBC/sXwWN5Hwvn uHImzIL4bfs= =RI3T -----END PGP SIGNATURE----- _______________________________________________ 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
