Boost C++ Libraries of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards


Struct template outer_product<Left, Right, std_vector_tag, std_vector_tag>

boost::numeric::functional::outer_product<Left, Right, std_vector_tag, std_vector_tag>


// In header: <boost/accumulators/statistics/covariance.hpp>

template<typename Left, typename Right> 
struct outer_product<Left, Right, std_vector_tag, std_vector_tag> {
  // types
  typedef Left                                                                                                                   first_argument_type; 
  typedef Right                                                                                                                  second_argument_type;
  typedef ublas::matrix< typename functional::multiplies< typename Left::value_type, typename Right::value_type >::result_type > result_type;         

  // public member functions
  result_type operator()(Left &, Right &) const;


outer_product public member functions

  1. result_type operator()(Left & left, Right & right) const;