[Bug-gsl] Bug in Hypergeometric function

[Salehi Vaziri Kamran]

Dear Sir or Madam,


Let me first thank you for your amazing package that is very well-written with 
a nice documentation.


I am using your package "gsl" for c++/c to calculate Integrals of 
Hypergeometric functions. I have trouble getting output for Hypergeometric 
function themselves.


To be precise your code gives error for the value of "gsl_sf_hyperg_2F1(-10, 2 
, 0.5 , 0.5)".


I tried to change the components a little bit and I understood that your code 
works down to a=-10 but after that it gives an error. I also check from Python 
and Mathematica and there is a finite value for this function(0.0778324).


Would you please respond to my e-mail since I was spending two days to debug 
this and now I get to this point. ?


Best regards,

Kamran Salehi Vaziri