13 cout <<
"m.leftCols(2) =" << endl <<
m.leftCols(2) << endl << endl;
14 cout <<
"m.bottomRows<2>() =" << endl <<
m.bottomRows<2>() << endl << endl;
15 m.topLeftCorner(1,3) =
m.bottomRightCorner(3,1).transpose();
16 cout <<
"After assignment, m = " << endl <<
m << endl;