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Re: [Bug-gsl] Bug in Hypergeometric function

From: Patrick Alken
Subject: Re: [Bug-gsl] Bug in Hypergeometric function
Date: Mon, 14 May 2018 15:42:19 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0


  I have logged your bug report into our bug tracker. It may take some time to develop a fix for this.


On 05/01/2018 08:51 AM, Salehi Vaziri Kamran wrote:
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 

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

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