cout << "t = " << *t << "\n";
cout << "r = " << *r << "\n";
cout << "sigma = " << *sigma << "\n";
cout << "omega = " << *omega << "\n";
cout << "t = " << *t << "\n";
cout << "r = " << *r << "\n";
cout << "sigma = " << *sigma << "\n";
cout << "omega = " << *omega << "\n";