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Re: [PATCH] Reduce the maximum precision for exp and log
On 28 February 2013 22:38, Joseph S. Myers <joseph@codesourcery.com> wrote:
> Please give details of your error analysis for the maximum inaccuracy in
> these implementations in glibc that shows that, together with the above
> worst-case figures, the error in the glibc implementation cannot exceed
> the distance from a half-way value.
I didn't think of doing that TBH since I assumed that the above
observations hold true for any accurate multiprecision implementation.
I realize now that our mp multiplication and division algorithms do
have an error bound > 1ULP, so I guess need to prove that it doesn't
make a difference here.
I'll spend some more time on this and repost the patch with changes if
necessary.
Thanks,
Siddhesh
--
http://siddhesh.in