Re: [Help-gsl] Domain error in function gsl_sf_hyperg_U_int for a negative argument

[Brian Gough]

At Fri, 30 Oct 2009 12:30:06 +0000,
Brian Gough wrote:
> 
> At Mon, 26 Oct 2009 22:08:19 +0100,
> Nacho Molina wrote:
> >      I am trying to use the special function gsl_sf_hyperg_U_int(int  
> > n, int m, double x) and it seems it is implemented only for x being  
> > positive. Is it that true? I could not find any reference about that  
> > on the manual.  I have used mathematica and it is able to give a value  
> > for x < 0 what makes me think that the function is well defined on  
> > negative real numbers.
> 
> You are right, it should handle the case of x<0 but this is not
> implemented.  I have logged this as a bug at
> 
> https://savannah.gnu.org/bugs/?27859

I have committed an enhancement to handle the case x<0.
http://git.savannah.gnu.org/cgit/gsl.git/commit/?id=c7e9e51a933ea55a72e6121ad1730d07adc7bb20

-- 
Brian Gough

GNU Scientific Library -
http://www.gnu.org/software/gsl/