1 Matrix3f A; 2 Vector3f b; 3 A << 1,2,3, 0,5,6, 0,0,10; 4 b << 3, 3, 4; 5 cout << "Here is the matrix A:" << endl << A << endl; 6 cout << "Here is the vector b:" << endl << b << endl; 7 Vector3f x = A.triangularView<Upper>().solve(b); 8 cout << "The solution is:" << endl << x << endl; 9
