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From: | Rodney Sparapani |
Subject: | [Help-gsl] Re: IEEE environment variable under Windows |
Date: | Wed, 07 Jul 2010 14:33:19 -0500 |
User-agent: | Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv:1.9.1.5) Gecko/20091202 Thunderbird/3.0 |
On 07/ 7/10 01:46 PM, Chao Ding wrote:
If GSL_IEEE does NOT work in Windows, the initiation of the underflow in my problem is that, I am computing a beta-binomial probability, which is gsl_sf_choose(n, k) * gsl_sf_beta(s+ k, f + n-k) /gsl_sf_beta(s, f); When s, f get larger, the problem of underflow happens. Is there any way to get rid of the underflow problem without GSL_IEEE_MODE setting? Thanks, Chao
Does re-writing in terms of gsl_sf_lnbeta help? Rodney
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