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Author mark.dickinson
Recipients akuchling, docs@python, mark.dickinson, python-dev, r.david.murray, sandro.tosi, terry.reedy, umedoblock
Date 2014-02-16.16:19:04
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <1392567544.59.0.754769102812.issue12211@psf.upfronthosting.co.za>
In-reply-to
Content 
The paragraph about NaNs isn't correct.  For example:

>>> from math import copysign
>>> copysign(1.0, float('nan'))
1.0
>>> copysign(1.0, -float('nan'))
-1.0

Though it doesn't really make sense to talk about 'positive' or 'negative' NaNs, a NaN still has a sign bit, and that sign bit is used in the copysign operation.
History
Date User Action Args
2014-02-16 16:19:04mark.dickinsonsetrecipients: + mark.dickinson, akuchling, terry.reedy, r.david.murray, sandro.tosi, docs@python, python-dev, umedoblock
2014-02-16 16:19:04mark.dickinsonsetmessageid: <1392567544.59.0.754769102812.issue12211@psf.upfronthosting.co.za>
2014-02-16 16:19:04mark.dickinsonlinkissue12211 messages
2014-02-16 16:19:04mark.dickinsoncreate