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<meta>
  <topic id="textscalc01func_imcoshxml">
    <title id="tit" xml-lang="en-US">IMCOSH function</title>
    <filename>/text/scalc/01/func_imcosh.xhp</filename>
  </topic>
</meta>
<body>
	<section id="func_imcosh_function">
		<bookmark xml-lang="en-US" branch="hid/SC_HID_AAI_FUNC_IMCOSH" id="bm_id123221232212322" localize="false"/>
		<bookmark xml-lang="en-US" branch="index" id="bm_id123771237712377">
			<bookmark_value>IMCOSH function</bookmark_value>
			<bookmark_value>hyperbolic cosine;complex number</bookmark_value>
		</bookmark>
		<paragraph id="hd_id124691246912469" role="heading" level="2" xml-lang="en-US">
			<variable id="imcosh_head">
				<link href="text/scalc/01/func_imcosh.xhp">IMCOSH</link>
			</variable> function
		</paragraph>
		<paragraph id="par_id125881258812588" role="paragraph" xml-lang="en-US">
			<ahelp hid=".">
				<variable id="imcosh_des">Returns the hyperbolic cosine of a complex number.</variable> The the hyperbolic cosine of a complex number can be expressed by:
			</ahelp>
		</paragraph>
	</section>
	<paragraph id="par_id24939266285933" role="code" xml-lang="en-US" localize="false">
		cosh(a+bi)=cosh(a)cos(b)+sinh(a)sin(b)i
	</paragraph>
	<embedvar href="text/scalc/01/ful_func.xhp#func_im_des"/>
	<embed href="text/scalc/01/ODFF.xhp#odff"/>
	<embedvar href="text/scalc/01/ful_func.xhp#func_head_syntax"/>
	<paragraph id="par_id16051131322110" role="code" xml-lang="en-US">
		<variable id="imcosh">IMCOSH</variable>(Complex_number)
	</paragraph>
	<paragraph id="par_id766137661376613" role="paragraph" xml-lang="en-US">
		<embedvar href="text/scalc/01/ful_func.xhp#func_define_complex"/> whose hyperbolic cosine is to be calculated.
	</paragraph>
	<paragraph id="par_id193292656220842" role="note" localize="false" xml-lang="en-US">
		<embedvar href="text/scalc/01/ful_func.xhp#func_im_comp_numb"/><br />
		<embedvar href="text/scalc/01/ful_func.xhp#func_im_real_numb"/>
	</paragraph>
	<paragraph id="par_id24300832426190" role="warning" localize="false" xml-lang="en-US">
		<embedvar href="text/scalc/01/ful_func.xhp#func_im_return_text"/><br />
		<embedvar href="text/scalc/01/ful_func.xhp#func_im_ignor_zero"/>
	</paragraph>
	<embedvar href="text/scalc/01/ful_func.xhp#func_head_example"/>
	<paragraph id="par_id55891471962" role="paragraph" xml-lang="en-US">
		<item type="input">
			=<embedvar href="text/scalc/01/func_imcosh.xhp#imcosh"/>("4-3i")
		</item><br/>
		returns -27.0349456030742-3.85115333481178i.
	</paragraph>
	<paragraph id="par_id152561887112896" role="paragraph" xml-lang="en-US">
		<item type="input">
			=<embedvar href="text/scalc/01/func_imcosh.xhp#imcosh"/>(2)
		</item><br/>
		returns 3.76219569108363 as a string. <embedvar href="text/scalc/01/ful_func.xhp#func_imag_zero"/>
	</paragraph>
	<section id="relatedtopics">
		<paragraph id="par_id127621276212762" role="paragraph" localize="false" xml-lang="en-US">
			<embedvar href="text/scalc/01/func_imcos.xhp#imcos_head"/>,
			<embedvar href="text/scalc/01/func_imsin.xhp#imsin_head"/>,
			<embedvar href="text/scalc/01/func_imsinh.xhp#imsinh_head"/>
		</paragraph>
	</section>
</body>
</helpdocument>