1#include <Eigen/Dense>
2#include <iostream>
3
4using namespace Eigen;
5using namespace std;
6
7int main()
8{
9  ArrayXXf a(3,3);
10  ArrayXXf b(3,3);
11  a << 1,2,3,
12       4,5,6,
13       7,8,9;
14  b << 1,2,3,
15       1,2,3,
16       1,2,3;
17
18  // Adding two arrays
19  cout << "a + b = " << endl << a + b << endl << endl;
20
21  // Subtracting a scalar from an array
22  cout << "a - 2 = " << endl << a - 2 << endl;
23}
24