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Re: [Bug-gsl] Bug in gsl_sf_exp_mult_e10_e error estimation
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From: |
Brian Gough |
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Subject: |
Re: [Bug-gsl] Bug in gsl_sf_exp_mult_e10_e error estimation |
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Date: |
Thu, 17 Jan 2008 19:53:53 +0000 |
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User-agent: |
Wanderlust/2.14.0 (Africa) Emacs/22.1 Mule/5.0 (SAKAKI) |
At Mon, 14 Jan 2008 12:16:10 +0100,
Szymon Jaroszewicz wrote:
>
> There is a bug in error estimation for gsl_sf_exp_mult_e10_e:
>
> gsl_sf_exp_e10_e(10000) gives error estimate 3.911404048e-11
>
> but
>
> gsl_sf_exp_mult_e10_e(10000, 1) gives 3.911012947e-15
>
Thanks for the bug report and example program.
I've confirmed it and logged it in the bug tracker.
It does look like the error from gsl_sf_exp_mult_e10_e
is wrong.
--
Brian Gough