1MatrixXd A = MatrixXd::Random(6,6); 2cout << "Here is a random 6x6 matrix, A:" << endl << A << endl << endl; 3 4RealSchur<MatrixXd> schur(A); 5cout << "The orthogonal matrix U is:" << endl << schur.matrixU() << endl; 6cout << "The quasi-triangular matrix T is:" << endl << schur.matrixT() << endl << endl; 7 8MatrixXd U = schur.matrixU(); 9MatrixXd T = schur.matrixT(); 10cout << "U * T * U^T = " << endl << U * T * U.transpose() << endl; 11