| #include <Eigen/Dense> |
| #include <iostream> |
| |
| using namespace std; |
| |
| int main() { |
| Eigen::MatrixXf m(4, 4); |
| m << 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16; |
| cout << "Block in the middle" << endl; |
| cout << m.block<2, 2>(1, 1) << endl << endl; |
| for (int i = 1; i <= 3; ++i) { |
| cout << "Block of size " << i << "x" << i << endl; |
| cout << m.block(0, 0, i, i) << endl << endl; |
| } |
| int j1 = 2; |
| int j2 = 3; |
| cout << "Non-square block of size " << j1 << "x" << j2 << endl; |
| cout << m.block(0, 0, j1, j2) << endl << endl; |
| } |
