1 #include <Eigen/Dense> 2 #include <iostream> 3 4 using namespace std; 5 6 int main() 7 { 8 Eigen::MatrixXf m(4,4); 9 m << 1, 2, 3, 4, 10 5, 6, 7, 8, 11 9,10,11,12, 12 13,14,15,16; 13 cout << "Block in the middle" << endl; 14 cout << m.block<2,2>(1,1) << endl << endl; 15 for (int i = 1; i <= 3; ++i) 16 { 17 cout << "Block of size " << i << "x" << i << endl; 18 cout << m.block(0,0,i,i) << endl << endl; 19 } 20 } 21
