1c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan KamathMatrix4i m = Matrix4i::Zero(); 2c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamathm.block<3,3>(1,0).setIdentity(); 3c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamathcout << m << endl; 4