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[Bug-gsl] incorrect result of gsl_sf_hyperg_1F1(-2, -0.23, -5)


From: address@hidden
Subject: [Bug-gsl] incorrect result of gsl_sf_hyperg_1F1(-2, -0.23, -5)
Date: Wed, 15 Aug 2012 10:17:48 -0700

Hi All,

gsl_sf_hyperg_1F1(-2, -0.23, -5) returns 183.641 instead of -183.641. The
correct result was verified with Wolfram Alpha (
http://www.wolframalpha.com/input/?i=1F1%28-2%2C+-0.23%2C+-5%29) and mpmath
(http://code.google.com/p/mpmath/).

Best regards,
Victor


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