| // SPDX-FileCopyrightText: The Eigen Authors | |
| // SPDX-License-Identifier: MPL-2.0 | |
| RowVector4i v = RowVector4i::Random(); | |
| cout << "Here is the vector v:" << endl << v << endl; | |
| cout << "Here is v.head(2):" << endl << v.head<2>() << endl; | |
| v.head<2>().setZero(); | |
| cout << "Now the vector v is:" << endl << v << endl; |