#include <algorithm>
#include <numeric>

//From http://www.richelbilderbeek.nl/CppReciprocal.htm
template <class Container>
void Reciprocal(Container& c)
{
  std::transform(c.begin(),c.end(),c.begin(),
    std::bind1st(std::divides<Container::value_type>(),1.0));    
}