#include #include using Eigen::MatrixXf; int main() { MatrixXf m(2, 2); MatrixXf n(2, 2); MatrixXf result(2, 2); m << 1, 2, 3, 4; n << 5, 6, 7, 8; result = (m.array() + 4).matrix() * m; std::cout << "-- Combination 1: --\n" << result << "\n\n"; result = (m.array() * n.array()).matrix() * m; std::cout << "-- Combination 2: --\n" << result << "\n\n"; }