1*cdf0e10cSrcweir<?xml version="1.0" encoding="UTF-8"?> 2*cdf0e10cSrcweir 3*cdf0e10cSrcweir 4*cdf0e10cSrcweir<!-- 5*cdf0e10cSrcweir *********************************************************************** 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 12*cdf0e10cSrcweir * 13*cdf0e10cSrcweir * This file is part of OpenOffice.org. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 16*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 17*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 18*cdf0e10cSrcweir * 19*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 20*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 21*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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If not, see 27*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 28*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 29*cdf0e10cSrcweir * 30*cdf0e10cSrcweir ************************************************************************ 31*cdf0e10cSrcweir --> 32*cdf0e10cSrcweir 33*cdf0e10cSrcweir<helpdocument version="1.0"> 34*cdf0e10cSrcweir<meta> 35*cdf0e10cSrcweir<topic id="textsbasicshared03080104xml" indexer="include" status="PUBLISH"> 36*cdf0e10cSrcweir<title id="tit" xml-lang="en-US">Tan Function [Runtime]</title> 37*cdf0e10cSrcweir<filename>/text/sbasic/shared/03080104.xhp</filename> 38*cdf0e10cSrcweir</topic> 39*cdf0e10cSrcweir<history> 40*cdf0e10cSrcweir<created date="2003-10-31T00:00:00">Sun Microsystems, Inc.</created> 41*cdf0e10cSrcweir<lastedited date="2006-12-15T09:15:53">converted from old format - fpe</lastedited> 42*cdf0e10cSrcweir</history> 43*cdf0e10cSrcweir</meta> 44*cdf0e10cSrcweir<body> 45*cdf0e10cSrcweir<section id="tan"> 46*cdf0e10cSrcweir<bookmark xml-lang="en-US" branch="index" id="bm_id3148550"><bookmark_value>Tan function</bookmark_value> 47*cdf0e10cSrcweir</bookmark> 48*cdf0e10cSrcweir<paragraph role="heading" id="hd_id3148550" xml-lang="en-US" level="1" l10n="U" oldref="1"><link href="text/sbasic/shared/03080104.xhp" name="Tan Function [Runtime]">Tan Function [Runtime]</link></paragraph> 49*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3148663" xml-lang="en-US" l10n="CHG" oldref="2">Determines the tangent of an angle. The angle is specified in radians.<comment>i71396</comment></paragraph> 50*cdf0e10cSrcweir</section> 51*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3153379" xml-lang="en-US" l10n="U" oldref="3">Using the angle Alpha, the Tan Function calculates the ratio of the length of the side opposite the angle to the length of the side adjacent to the angle in a right-angled triangle.</paragraph> 52*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3154366" xml-lang="en-US" l10n="U" oldref="4">Tan(Alpha) = side opposite the angle/side adjacent to angle</paragraph> 53*cdf0e10cSrcweir<paragraph role="heading" id="hd_id3145174" xml-lang="en-US" level="2" l10n="U" oldref="5">Syntax:</paragraph> 54*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3151042" xml-lang="en-US" l10n="U" oldref="6">Tan (Number)</paragraph> 55*cdf0e10cSrcweir<paragraph role="heading" id="hd_id3156214" xml-lang="en-US" level="2" l10n="U" oldref="7">Return value:</paragraph> 56*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3156281" xml-lang="en-US" l10n="U" oldref="8">Double</paragraph> 57*cdf0e10cSrcweir<paragraph role="heading" id="hd_id3155132" xml-lang="en-US" level="2" l10n="U" oldref="9">Parameters:</paragraph> 58*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3145786" xml-lang="en-US" l10n="U" oldref="10"> 59*cdf0e10cSrcweir<emph>Number:</emph> Any numeric expression that you want to calculate the tangent for (in radians).</paragraph> 60*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3153728" xml-lang="en-US" l10n="U" oldref="11">To convert degrees to radians, multiply by Pi/180. To convert radians to degrees, multiply by 180/Pi.</paragraph> 61*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3155414" xml-lang="en-US" l10n="CHG" oldref="12">degrees=(radiant*180)/Pi</paragraph> 62*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3146975" xml-lang="en-US" l10n="CHG" oldref="13">radiant=(degrees*Pi)/180</paragraph> 63*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3147434" xml-lang="en-US" l10n="U" oldref="14">Pi is approximately 3.141593.</paragraph> 64*cdf0e10cSrcweir<embed href="text/sbasic/shared/00000003.xhp#errorcode"/> 65*cdf0e10cSrcweir<embed href="text/sbasic/shared/00000003.xhp#err5"/> 66*cdf0e10cSrcweir<paragraph role="heading" id="hd_id3149483" xml-lang="en-US" level="2" l10n="U" oldref="15">Example:</paragraph> 67*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3148646" xml-lang="en-US" l10n="U" oldref="16">REM In this example, the following entry is possible for a right-angled triangle:</paragraph> 68*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3150012" xml-lang="en-US" l10n="U" oldref="17">REM The side opposite the angle and the angle (in degrees) to calculate the length of the side adjacent to the angle:</paragraph> 69*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3151115" xml-lang="en-US" l10n="U" oldref="18">Sub ExampleTangens</paragraph> 70*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3153158" xml-lang="en-US" l10n="U" oldref="19">REM Pi = 3.1415926 is a pre-defined variable</paragraph> 71*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3145800" xml-lang="en-US" l10n="U" oldref="20">Dim d1 as Double</paragraph> 72*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3150417" xml-lang="en-US" l10n="U" oldref="21">Dim dAlpha as Double</paragraph> 73*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3145252" xml-lang="en-US" l10n="U" oldref="22">d1 = InputBox$ ("Enter the length of the side opposite the angle: ","opposite")</paragraph> 74*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3149582" xml-lang="en-US" l10n="U" oldref="23">dAlpha = InputBox$ ("Enter the Alpha angle (in degrees): ","Alpha")</paragraph> 75*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3154016" xml-lang="en-US" l10n="U" oldref="24">Print "the length of the side adjacent the angle is"; (d1 / tan (dAlpha * Pi / 180))</paragraph> 76*cdf0e10cSrcweir<paragraph role="paragraph" id="par_id3154731" xml-lang="en-US" l10n="U" oldref="25">End Sub</paragraph> 77*cdf0e10cSrcweir</body> 78*cdf0e10cSrcweir</helpdocument> 79