1 MatrixXf M1(3,3); // Column-major storage 2 M1 << 1, 2, 3, 3 4, 5, 6, 4 7, 8, 9; 5 6 Map<RowVectorXf> v1(M1.data(), M1.size()); 7 cout << "v1:" << endl << v1 << endl; 8 9 Matrix<float,Dynamic,Dynamic,RowMajor> M2(M1); 10 Map<RowVectorXf> v2(M2.data(), M2.size()); 11 cout << "v2:" << endl << v2 << endl;