1*bf2c3715SXin Li MatrixXcf ones = MatrixXcf::Ones(3,3); 2*bf2c3715SXin Li ComplexEigenSolver<MatrixXcf> ces(ones); 3*bf2c3715SXin Li cout << "The first eigenvector of the 3x3 matrix of ones is:" 4*bf2c3715SXin Li << endl << ces.eigenvectors().col(0) << endl; 5