1 #include <Eigen/Dense> 2 #include <iostream> 3 4 using namespace std; 5 using namespace Eigen; 6 7 int main() 8 { 9 Array22f m; 10 m << 1,2, 11 3,4; 12 Array44f a = Array44f::Constant(0.6); 13 cout << "Here is the array a:" << endl << a << endl << endl; 14 a.block<2,2>(1,1) = m; 15 cout << "Here is now a with m copied into its central 2x2 block:" << endl << a << endl << endl; 16 a.block(0,0,2,3) = a.block(2,1,2,3); 17 cout << "Here is now a with bottom-right 2x3 block copied into top-left 2x2 block:" << endl << a << endl << endl; 18 } 19
