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<h4 class="subsection" id="Error-Messages-1"><span>1.3.4 Error Messages<a class="copiable-link" href="#Error-Messages-1"> ¶</a></span></h4>
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<p>Some examples signal errors. This normally displays an error message
on your terminal. Error messages are shown on a line beginning with
<code class="code">error:</code>.
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<div class="group"><pre class="example-preformatted">fieldnames ([1, 2; 3, 4])
error: fieldnames: Invalid input argument
</pre></div></div>
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