1#include <iostream>
2#include <Eigen/Dense>
3
4using namespace Eigen;
5int main()
6{
7  Matrix2d mat;
8  mat << 1, 2,
9         3, 4;
10  Vector2d u(-1,1), v(2,0);
11  std::cout << "Here is mat*mat:\n" << mat*mat << std::endl;
12  std::cout << "Here is mat*u:\n" << mat*u << std::endl;
13  std::cout << "Here is u^T*mat:\n" << u.transpose()*mat << std::endl;
14  std::cout << "Here is u^T*v:\n" << u.transpose()*v << std::endl;
15  std::cout << "Here is u*v^T:\n" << u*v.transpose() << std::endl;
16  std::cout << "Let's multiply mat by itself" << std::endl;
17  mat = mat*mat;
18  std::cout << "Now mat is mat:\n" << mat << std::endl;
19}
20