iv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../boost_units/Reference.html#header.boost.units.lambda_hpp" title="Header &lt;boost/units/lambda.hpp&gt;">boost/units/lambda.hpp</a>&gt;

</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> System1<span class="special">,</span> <span class="keyword">typename</span> Dim1<span class="special">,</span> <span class="keyword">typename</span> Unit2<span class="