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<div class="textblock"><p>Section: <a class="el" href="sec_flow.html">Flow Control</a> </p>
<h1><a class="anchor" id="Usage"></a>
Usage</h1>
<p>The <code>warning</code> function causes a warning message to be sent to the user. The general syntax for its use is </p>
<pre class="fragment"> warning(s)
</pre><p> where <code>s</code> is the string message containing the warning.</p>
<p>The <code>warning</code> function can also be used to turn off warnings, and to retrieve the current state of the warning flag. To turn off warnings use the syntax </p>
<pre class="fragment"> warning off
</pre><p> at which point, warnings will not be displayed. To turn on warnings use the syntax </p>
<pre class="fragment"> warning on
</pre><p> In both cases, you can also retrieve the current state of the warnings flag </p>
<pre class="fragment"> y = warning('on')
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