  <li><a name="TOC288" href="maxima_52.html#SEC306">52.1 Functions and Variables for Groups</a></li>
  </ul></li>
  <li><a name="TOC289" href="maxima_53.html#SEC307">53. impdiff</a>
  <ul class="toc">
    <li><a name="TOC290" href="maxima_53.html#SEC308">53.1 Functions and Variables for impdiff</a></li>
  </ul></li>
  <li><a name="TOC291" href="maxima_54.html#SEC309">54. interpol</a>
  <ul class="toc">
    <li><a name="TOC292" href="maxima_54.html#SEC310">54.1 Introduction to interpol</a></li>
    <li><a na