00001 #include <Eigen/Dense> 00002 #include <iostream> 00003 00004 using namespace std; 00005 00006 int main() 00007 { 00008 Eigen::ArrayXf v(6); 00009 v << 1, 2, 3, 4, 5, 6; 00010 cout << "v.head(3) =" << endl << v.head(3) << endl << endl; 00011 cout << "v.tail<3>() = " << endl << v.tail<3>() << endl << endl; 00012 v.segment(1,4) *= 2; 00013 cout << "after 'v.segment(1,4) *= 2', v =" << endl << v << endl; 00014 }