bugGNU Scientific Library - Bugs: bug #27859, gsl_sf_hyperg_U not implemented...

 
 
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bug #27859: gsl_sf_hyperg_U not implemented for x<0

Submitted by:  Brian Gough <bjg>
Submitted on:  Fri 30 Oct 2009 12:29:40 PM UTC  
 
Category: Runtime errorSeverity: 3 - Normal
Operating System: Status: Confirmed
Assigned to: NoneOpen/Closed: Open
Release: 1.13

Fri 30 Oct 2009 12:34:28 PM UTC, comment #1:

confirmed; it should handle the case of x<0 using A&S 13.1.3

Brian Gough <bjg>
Project Administrator
Fri 30 Oct 2009 12:29:40 PM UTC, original submission:

From: Nacho Molina <nacho.molina@epfl.ch>
To: -unavailable-
Subject: [Help-gsl] Domain error in function gsl_sf_hyperg_U_int for a negative argument
Date: Mon, 26 Oct 2009 22:08:19 +0100

Hello,

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.

Thank you very much for your work and hlep,
Nacho.

Brian Gough <bjg>
Project Administrator

 

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