URL:
<http://savannah.gnu.org/bugs/?45925>
Summary: Incomplete Gamma Functions flipped?
Project: GNU Scientific Library
Submitted by: psa
Submitted on: Fri 11 Sep 2015 10:07:55 AM GMT
Category: Runtime error
Severity: 3 - Normal
Operating System:
Status: None
Assigned to: None
Open/Closed: Open
Release:
Discussion Lock: Any
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Details:
from vsakharuk =at= hbk =dot= com
Hello all,
Running 32 bit gsl on windows.
Got flipped results for incomplete gamma Functions.
#include <iomanip>
#include <iostream>
#include <gsl\gsl_specfunc.h>
using namespace std;
int main( int argc, char* argv[])
{
cout<<"GSL incomplete gamma=" << gsl_sf_gamma_inc(1.000000, 3.000000)<<
endl;
cout<<"GSL incomplete gamma P=" << gsl_sf_gamma_inc_P(1.000000,
3.000000)<< endl;
return 0;
}
Output:
GSL incomplete gamma=0.0497871
GSL incomplete gamma P=0.950213
IMHO, GSL incomplete gamma should be equal to 0.950213
This is output of incomplete gamma P
Regards V.
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