pan class="comment">// types</span>
  <span class="keyword">typedef</span> <a class="link" href="unit.html" title="Class template unit">unit</a><span class="special">&lt;</span> <span class="keyword">typename</span> <a class="link" href="static_root.html" title="Struct template static_root">static_root</a><span class="special">&lt;</span> <span class="identifier">Dim</span><span class="special">,</span> <a class="link" href="static_rational.html" title="Class template static_rational">static_rational</a><sp