[Bug-gsl] [bug #51000] Incorrect results of gsl_airy_deriv function

[Xin Yi]

URL:
  <http://savannah.gnu.org/bugs/?51000>

                 Summary: Incorrect results of gsl_airy_deriv function
                 Project: GNU Scientific Library
            Submitted by: star_09
            Submitted on: Thu 11 May 2017 01:20:41 AM UTC
                Category: Accuracy problem
                Severity: 3 - Normal
        Operating System: ubuntu 14.04
                  Status: None
             Assigned to: None
             Open/Closed: Open
                 Release: gsl 2.1
         Discussion Lock: Any

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Details:

I run the gsl_airy_deriv function at input -5.643803094122288e+102, the result
is 
1.23773099046e+25. But the results should be <0.

So I used the mpmath airyai(t,1), I got the result:-2.35733848063182e+25

I want to know the input is in the domain of gsl_airy_deriv?
Why the results so different?




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