 [i]      template<class T0, class E0>      BOOST_UBLAS_INLINE      typename enable_if< is_convertible<T0, typename E0::value_type >,      typename vector_binary_scalar0_traits<const T0, E0, scalar_plus<T0, typename E0::value_type> >::result_type      >::type      operator + (const T0 &e0,                  const vector_expression<E0> &e0) {          typedef typename vector_binary_scalar0_traits<const T0, E0, scalar_plus<T0, typename E0::value_type> >::expression_type expression_type;          return expression_type (e0, e0 ());      }        // addition with scalar      // (t + 