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<p>
Next: <a href="Comments-and-the-Help-System.html" accesskey="n" rel="next">Comments and the Help System</a>, Previous: <a href="Single-Line-Comments.html" accesskey="p" rel="prev">Single Line Comments</a>, Up: <a href="Comments.html" accesskey="u" rel="up">Comments in Octave Programs</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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<h4 class="subsection" id="Block-Comments-1"><span>2.7.2 Block Comments<a class="copiable-link" href="#Block-Comments-1"> &para;</a></span></h4>
<a class="index-entry-id" id="index-block-comments"></a>
<a class="index-entry-id" id="index-multi_002dline-comments"></a>

<a class="index-entry-id" id="index-_0023_007b-block-comment-marker"></a>
<a class="index-entry-id" id="index-_0025_007b-block-comment-marker"></a>
<p>Entire blocks of code can be commented by enclosing the code between
matching &lsquo;<samp class="samp">#{</samp>&rsquo; and &lsquo;<samp class="samp">#}</samp>&rsquo; or &lsquo;<samp class="samp">%{</samp>&rsquo; and &lsquo;<samp class="samp">%}</samp>&rsquo; markers.
For example,
</p>
<div class="example">
<div class="group"><pre class="example-preformatted">function quick_countdown
  # Count down for main rocket engines
  disp (3);
 #{
  disp (2);
  disp (1);
 #}
  disp (&quot;Blast Off!&quot;);  # Rocket leaves pad
endfunction
</pre></div></div>

<p>will produce a very quick countdown from <code class="code">'3'</code> to <code class="code">&quot;Blast Off&quot;</code> as
the lines &quot;<code class="code">disp (2);</code>&quot; and &quot;<code class="code">disp (1);</code>&quot; won&rsquo;t be executed.
</p>
<p>The block comment markers must appear alone as the only characters on a line
(excepting whitespace) in order to be parsed correctly.
</p>
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