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<?xml version="1.0" encoding="UTF-8"?>
<helpdocument version="1.0">
<!--
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* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
-->
<meta>
<topic id="textscalc01func_imtanxml">
<title id="tit" xml-lang="en-US">IMTAN function</title>
<filename>text/scalc/01/func_imtan.xhp</filename>
</topic>
</meta>
<body>
<section id="imtan_function">
<bookmark xml-lang="en-US" branch="hid/SC_HID_AAI_FUNC_IMTAN" id="bm_id814415710920" localize="false"/>
<bookmark xml-lang="en-US" branch="index" id="bm_id4210250889873">
<bookmark_value>IMTAN function</bookmark_value>
<bookmark_value>tangent;complex number</bookmark_value>
</bookmark>
<paragraph id="hd_id9522389621160" role="heading" level="2" xml-lang="en-US">
<variable id="imtan_head">
<link href="text/scalc/01/func_imtan.xhp">IMTAN</link>
</variable> function
</paragraph>
<paragraph id="par_id5700137827273" role="paragraph" xml-lang="en-US">
<ahelp hid=".">
<variable id="imtan_des">Returns the tangent of a complex number.</variable> The tangent of a complex number can be expressed by:
</ahelp>
</paragraph>
</section>
<paragraph id="par_id25021317131239" role="code" xml-lang="en-US">
<image id="img_id16283275473700" src="media/helpimg/sc_func_imtan.png">
<alt xml-lang="en-US" id="alt_id676711494402">
tan(a+bi)=sin(a+bi)/cos(a+bi)
</alt>
</image>
</paragraph>
<embed href="text/scalc/01/ful_func.xhp#func_im_des"/>
<embed href="text/scalc/01/ODFF.xhp#odff"/>
<embed href="text/scalc/01/ful_func.xhp#func_head_syntax"/>
<paragraph id="par_id23219159944377" role="code" xml-lang="en-US">
IMTAN(Complex_number)
</paragraph>
<paragraph id="par_id10242899132094" role="paragraph" xml-lang="en-US">
Complex_number is a complex number whose tangent is to be calculated.
</paragraph>
<paragraph id="par_id21830101306312" 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_id307202808512424" 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>
<embed href="text/scalc/01/ful_func.xhp#func_head_example"/>
<paragraph id="par_id5063188419467" role="paragraph" xml-lang="en-US">
<item type="input">=IMTAN("4-3i")</item><br/>
returns 0.00490825806749606-1.00070953606723i.
</paragraph>
<paragraph id="par_id1527387141125" role="paragraph" xml-lang="en-US">
<item type="input">=IMTAN(2)</item><br/>
returns -2.18503986326152 as a string. <embedvar href="text/scalc/01/ful_func.xhp#func_imag_zero"/>
</paragraph>
<section id="relatedtopics">
<paragraph id="par_id2479417868613" role="paragraph" localize="false" xml-lang="en-US">
<embedvar href="text/scalc/01/func_imcot.xhp#imcot_head"/>
</paragraph>
</section>
</body>
</helpdocument>
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