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[Bug-gsl] bug report

From: Yingxiang XU
Subject: [Bug-gsl] bug report
Date: Fri, 5 Oct 2012 20:14:06 +0800 (CST)

when I try to compute the modified bessel function of the second type, by using 
of the function gsl_sf_bessel_Knu(), I got some problems: for example
gsl_sf_bessel_Knu(pi,0.5) gives "domain error"
gsl_sf_bessel_Kn_scaled(3.5, 1) and gsl_sf_bessel_Kn_scaled(3.1, 1) give the 
same results (of gsl_sf_bessel_Kn_scaled(3, 1)), it seems it does not work for 
fractional order
How can we solve these problems?
Looking forward to hearing from you.
Yingxiang XU

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