#include "TMath.h"
#include "TF1.h"
#include "TCanvas.h"

#include <Riostream.h>
#include "TLegend.h"
#include "TLegendEntry.h"

#include "Math/IFunction.h"
#include "Math/SpecFuncMathMore.h"
#include <math.h>  

#include <cmath>
#include "TSystem.h"
//
//

void Cheby(){

  gROOT->Reset();
  
  gSystem->Load("libMathMore");

  const Double_t a=0.0, b=0.7;
  const Int_t n=8;
  const Double_t coeff[] = {1.2,0.1,0.03,0.007,0.002,0.0004,0.0001,0.00003};
 

  //  Cheb = new TF1("Cheb", "ROOT::Math::Chebyshev(x, [0], [1], [2], [3])", -100,100);
  //  Cheb->SetParameters(coeff, a, b, n);

  //  cout << ROOT::Math::Chebyshev(0.5,coeff, a, b, n) << endl;

  //  cout << Cheb(0.5) << endl;

 }