1 #include <Eigen/Core> 2 #include <iostream> 3 4 using namespace Eigen; 5 6 int main() 7 { 8 Matrix3f m3; 9 m3 << 1, 2, 3, 4, 5, 6, 7, 8, 9; 10 Matrix4f m4 = Matrix4f::Identity(); 11 Vector4i v4(1, 2, 3, 4); 12 13 std::cout << "m3\n" << m3 << "\nm4:\n" 14 << m4 << "\nv4:\n" << v4 << std::endl; 15 } 16