Author mark.dickinson
Recipients Rhamphoryncus, christian.heimes, gmcastil, mark.dickinson, tim.peters
Date 2008-01-21.19:29:33
SpamBayes Score 0.0165761
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Message-id <1200943781.56.0.365314737021.issue1640@psf.upfronthosting.co.za>
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The problem with atanh is that it should be using absx throughout, rather than x.

So in "if (absx < 0.5)" branch and the following branch, replace all occurrences of x with 
absx, and it should work.

One other comment:  asinh shouldn't directly set errno for a NaN.  It should do the same as 
acosh and atanh:  return x+x. 

This makes asinh(float("nan")) return a nan, which makes it consistent with acosh and 
atanh, consistent with the way that Linux and OS X behave, and consistent with the other 
single-argument functions in math.

I think asinh should also return x+x for x an infinity.  This again should make it 
consistent with the way that the libm asinh works on OS X and Linux.
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Date User Action Args
2008-01-21 19:29:41mark.dickinsonsetspambayes_score: 0.0165761 -> 0.0165761
recipients: + mark.dickinson, tim.peters, Rhamphoryncus, christian.heimes, gmcastil
2008-01-21 19:29:41mark.dickinsonsetspambayes_score: 0.0165761 -> 0.0165761
messageid: <1200943781.56.0.365314737021.issue1640@psf.upfronthosting.co.za>
2008-01-21 19:29:33mark.dickinsonlinkissue1640 messages
2008-01-21 19:29:33mark.dickinsoncreate