19 lines
523 B
C++
19 lines
523 B
C++
#include <Eigen/Dense>
|
|
#include <iostream>
|
|
|
|
using namespace std;
|
|
using namespace Eigen;
|
|
|
|
int main()
|
|
{
|
|
Array22f m;
|
|
m << 1,2,
|
|
3,4;
|
|
Array44f a = Array44f::Constant(0.6);
|
|
cout << "Here is the array a:" << endl << a << endl << endl;
|
|
a.block<2,2>(1,1) = m;
|
|
cout << "Here is now a with m copied into its central 2x2 block:" << endl << a << endl << endl;
|
|
a.block(0,0,2,3) = a.block(2,1,2,3);
|
|
cout << "Here is now a with bottom-right 2x3 block copied into top-left 2x2 block:" << endl << a << endl << endl;
|
|
}
|