| Matrix3i m = Matrix3i::Random(); | 
 | cout << "Here is the matrix m:" << endl << m << endl; | 
 | cout << "Here is the upper-triangular matrix extracted from m:" << endl | 
 |      << Matrix3i(m.triangularView<Eigen::Upper>()) << endl; | 
 | cout << "Here is the strictly-upper-triangular matrix extracted from m:" << endl | 
 |      << Matrix3i(m.triangularView<Eigen::StrictlyUpper>()) << endl; | 
 | cout << "Here is the unit-lower-triangular matrix extracted from m:" << endl | 
 |      << Matrix3i(m.triangularView<Eigen::UnitLower>()) << endl; | 
 | // FIXME need to implement output for triangularViews (Bug 885) |