bugGNU Scientific Library - Bugs: bug #53905, Bug in Hypergeometric function

 
 

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bug #53905: Bug in Hypergeometric function

Submitted by:  Patrick Alken <psa>
Submitted on:  Mon 14 May 2018 09:41:03 PM UTC  
 
Category:  None Severity:  3 - Normal
Operating System:  Status:  None
Assigned to:  None Open/Closed:  Open
Release: 

Mon 14 May 2018 09:41:03 PM UTC, original submission:

from kamran =dot= salehivaziri =at= epfl =dot= ch

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. ?

Patrick Alken <psa>
Project Administrator

 

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