%%cpp -d
#include "RConfigure.h"

#ifdef R__HAS_MATHMORE
#include "Math/MultiRootFinder.h"
#else
#error libMathMore is not available - cannot run this tutorial
#endif
#include "Math/WrappedMultiTF1.h"
#include "TF2.h"
#include "TError.h"


using namespace ROOT::Math;

const char * algo = nullptr;
int printlevel = 1;

ROOT::Math::MultiRootFinder r(algo);

TF2 * f1 = new TF2("f1","[0]*(1-x)+[1]*y");
TF2 * f2 = new TF2("f2","[0]*(y-x*x)");
f1->SetParameters(1,0);
f2->SetParameter(0,10);

ROOT::Math::WrappedMultiTF1 g1(*f1,2);
ROOT::Math::WrappedMultiTF1 g2(*f2,2);
r.AddFunction(g1);
r.AddFunction(g2);
r.SetPrintLevel(printlevel);

double x0[2]={-1,-1};
r.Solve(x0);