<div class="raw-html-embed">	<p>The <b>IMCOS</b> function is one of the <a href="../../docs/userguides/spreadsheet_editor/InsertFunction.aspx#engineering" onclick="onhyperlinkclick(this)">engineering functions</a>. It is used to return the cosine of a complex number.</p>

	<h5 class="pt8">Syntax</h5>
	<p><b><em>IMCOS(inumber)</em></b></p>
	<p>The <b>IMCOS</b> function has the following argument:</p>
	<table>
		<tbody>
			<tr>
				<th style="background-color: #f4f4f4" width="150ch"><b>Argument</b></th>
				<th style="background-color: #f4f4f4"><b>Description</b></th>
			</tr>
			<tr>
				<td><b><em>inumber</em></b></td>
				<td>A complex number expressed in x + yi or x + yj form.</td>
			</tr>
		</tbody>
	</table>

	<h5 class="pt8">Notes</h5>
	<p><a href="../../docs/userguides/spreadsheet_editor/InsertFunction.aspx#howtoapplyfunctions_block" onclick="onhyperlinkclick(this)">How to apply</a> the <b>IMCOS</b> function.</p>

	<h5 class="pt8">Examples</h5>
	<p>The figure below displays the result returned by the <b>IMCOS</b> function.</p>
	<p><img alt="IMCOS Function" src="https://static-helpcenter.onlyoffice.com/imcos_1ec952aae6.png"></p></div>

IMCOS function

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