doc/snippets/Matrix_variadic_ctor.cpp

// SPDX-FileCopyrightText: The Eigen Authors
// SPDX-License-Identifier: MPL-2.0

Matrix<int, 1, 6> a(1, 2, 3, 4, 5, 6);
Matrix<int, 3, 1> b{1, 2, 3};
cout << a << "\n\n" << b << endl;