bugGNU Scientific Library - Bugs: bug #58061, Dropped NaN from...


You are not allowed to post comments on this tracker with your current authentication level.

bug #58061: Dropped NaN from gsl_sf_hyperg_U_int

Submitter:  Jackson Vanover <jacksonvanover>
Submitted:  Sat 28 Mar 2020 04:42:29 PM UTC
Category:  Accuracy problem Severity:  3 - Normal
Operating System:  Ubuntu 18.04 Status:  None
Assigned to:  None Open/Closed:  Open
Release:  2.6

Sat 28 Mar 2020 04:42:29 PM UTC, original submission:  

Using version 2.6 of GSL from ftp://ftp.gnu.org/gnu/gsl/gsl-2.6.tar.gz

OS is Ubuntu 18.04.2 LTS

Hardware is a Dell workstation with a 3.60 GHz Intel i7-4790 and 32 GB
of RAM

Compiler is gcc 7.4.0 with the -w option

When the first argument is zero and third argument is a NaN,
gsl_sf_hyperg_U_int returns 1. When the first argument is nonzero, the
error handler is invoked as would be expected.

#include <gsl/gsl_sf.h>
#include <stdio.h>
#include <gsl/gsl_math.h>

int main (void){
double out;
out = gsl_sf_hyperg_U_int(0, 1, GSL_NAN);

printf("%f\n", out);
printf("%.21e\n", out);
return 0;

Jackson Vanover <jacksonvanover>


(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

No files currently attached


Depends on the following items: None found

Items that depend on this one: None found


Carbon-Copy List
  • -email is unavailable- added by jacksonvanover (Submitted the item)

    No changes have been made to this item

    Back to the top

    Powered by Savane 3.13-c54d.
    Corresponding source code