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#include <Eigen/Core>
USING_PART_OF_NAMESPACE_EIGEN
using namespace std;
int main()
{
typedef Matrix<SCALAR,Eigen::Dynamic,1> Vec;
Vec v(SIZE);
v.setZero();
v[0] = 1;
v[1] = 2;
for(int i = 0; i < 1000000; i++)
{
v.coeffRef(0) += v.sum() * SCALAR(1e-20);
}
cout << v.sum() << endl;
}
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