sudo apt-get install libgsl2 libgsl-dev gsl-bin

// include files
#include <iostream>
#include <iomanip>
#include <fstream>
#include <math.h>
using namespace std;

#include <gsl/gsl_sf_bessel.h>  // gsl Bessel special function header
file
//packages I need
#include <gsl/gsl_sf_gamma.h>
#include <gsl/gsl_sf_hermite.h>

int
main (void)
{
  double x = 5.0;   // just a random test value

  double y = gsl_sf_bessel_J0 (x);   // see the GSL manual for details

  cout << "J0(" << x << ") = "
       << setprecision(18) << setw(20) << y << endl;

  y = gsl_sf_hermite_phys(10,x);   // see the GSL manual for details
  cout << "H10(" << x << ") = "
       << setprecision(18) << setw(20) << y << endl;

  return 0;
}

gsl_test.cpp:(.text+0xcd): undefined reference to`gsl_sf_hermite_phys'
collect2: error: ld returned 1 exit status