| // SPDX-FileCopyrightText: The Eigen Authors | |
| // SPDX-License-Identifier: MPL-2.0 | |
| MatrixXd ones = MatrixXd::Ones(3, 3); | |
| SelfAdjointEigenSolver<MatrixXd> es(ones); | |
| cout << "The first eigenvector of the 3x3 matrix of ones is:" << endl << es.eigenvectors().col(0) << endl; |