html"><i class="fa fa-check"></i><b>13.9</b> <code>if_else</code> Function</a></li>
<li class="chapter" data-level="13.10" data-path="absreal-x-function.html"><a href="absreal-x-function.html"><i class="fa fa-check"></i><b>13.10</b> <code>abs(real x)</code> Function</a></li>
<li class="chapter" data-level="13.11" data-path="character-as-comment-prefix.html"><a href="character-as-comment-prefix.html"><i class="fa fa-check"></i><b>13.11</b> Character <code>#</code> as Comment Prefix</a></li>
</ul></li>
<li cl