00001 #include <iostream> 00002 #include <Eigen/Dense> 00003 00004 using namespace Eigen; 00005 using namespace std; 00006 int main() 00007 { 00008 Vector3d v(1,2,3); 00009 Vector3d w(0,1,2); 00010 00011 cout << "Dot product: " << v.dot(w) << endl; 00012 double dp = v.adjoint()*w; // automatic conversion of the inner product to a scalar 00013 cout << "Dot product via a matrix product: " << dp << endl; 00014 cout << "Cross product:\n" << v.cross(w) << endl; 00015 }