ors.numeric.functional_hpp" title="Header &lt;boost/accumulators/numeric/functional.hpp&gt;">boost/accumulators/numeric/functional.hpp</a>&gt;

</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Left<span class="special">,</span> <span class="keyword">typename</span> Right<span class="special">,</span> 
         <span class="keyword">typename</span> LeftTag <span class="special">=</span> <span class="keyword">typename</span> <span class="identi