[Numpy-discussion] Bug in logaddexp2.reduce

Charles R Harris charlesr.harris@gmail....
Thu Apr 1 21:16:45 CDT 2010


On Thu, Apr 1, 2010 at 7:59 PM, David Cournapeau <david@silveregg.co.jp>wrote:

> Anne Archibald wrote:
>
> >
> > First I guess we should check which systems don't have log1p
>
> This is already done - we do use the system log1p on linux (but note
> that log2_1p is not standard AFAIK). I would guess few systems outside
> windows don't have log1p, given that msun has an implementation,
>
>
I see that msun uses the same series I came to. However, my rational (Pade)
approximation is a lot better than their polynomial.

Chuck
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