1c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan KamathMatrix3i m1; 2c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamathm1 << 1, 2, 3, 3c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath 4, 5, 6, 4c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath 7, 8, 9; 5c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamathcout << m1 << endl << endl; 6c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan KamathMatrix3i m2 = Matrix3i::Identity(); 7c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamathm2.block(0,0, 2,2) << 10, 11, 12, 13; 8c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamathcout << m2 << endl << endl; 9c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan KamathVector2i v1; 10c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamathv1 << 14, 15; 11c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamathm2 << v1.transpose(), 16, 12c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamath v1, m1.block(1,1,2,2); 13c981c48f5bc9aefeffc0bcb0cc3934c2fae179ddNarayan Kamathcout << m2 << endl; 14