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#include <iostream>
#include <Eigen/Dense>
using namespace Eigen; using namespace std; int main() { Vector3d v(1,2,3); Vector3d w(0,1,2);
cout << "Dot product: " << v.dot(w) << endl; double dp = v.adjoint()*w; // automatic conversion of the inner product to a scalar
cout << "Dot product via a matrix product: " << dp << endl; cout << "Cross product:\n" << v.cross(w) << endl; }
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