1*bf2c3715SXin Li MatrixXi mat(3,3); 2*bf2c3715SXin Li mat << 1, 2, 3, 4, 5, 6, 7, 8, 9; 3*bf2c3715SXin Li cout << "Here is the matrix mat:\n" << mat << endl; 4*bf2c3715SXin Li 5*bf2c3715SXin Li // This assignment shows the aliasing problem 6*bf2c3715SXin Li mat.bottomRightCorner(2,2) = mat.topLeftCorner(2,2); 7*bf2c3715SXin Li cout << "After the assignment, mat = \n" << mat << endl; 8