MatrixBase_block_int_int_int_int.cpp revision c981c48f5bc9aefeffc0bcb0cc3934c2fae179dd 
1Matrix4i m = Matrix4i::Random();
2cout << "Here is the matrix m:" << endl << m << endl;
3cout << "Here is m.block(1, 1, 2, 2):" << endl << m.block(1, 1, 2, 2) << endl;
4m.block(1, 1, 2, 2).setZero();
5cout << "Now the matrix m is:" << endl << m << endl;
6