<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>taninv</title> <link rel="stylesheet" type="text/css" href="csound.css" /> <link rel="stylesheet" type="text/css" href="syntax-highlighting.css" /> <meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /> <link rel="home" href="index.html" title="The Canonical Csound Reference Manual" /> <link rel="up" href="OpcodesTop.html" title="Orchestra Opcodes and Operators" /> <link rel="prev" href="tanh.html" title="tanh" /> <link rel="next" href="taninv2.html" title="taninv2" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">taninv</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="tanh.html">Prev</a> </td> <th width="60%" align="center">Orchestra Opcodes and Operators</th> <td width="20%" align="right"> <a accesskey="n" href="taninv2.html">Next</a></td> </tr> </table> <hr /> </div> <div class="refentry"> <a id="taninv"></a> <div class="titlepage"></div> <a id="IndexTaninv" class="indexterm"></a> <div class="refnamediv"> <h2> <span class="refentrytitle">taninv</span> </h2> <p>taninv — Performs an arctangent function. </p> </div> <div class="refsect1"> <a id="idm281472879364360"></a> <h2>Description</h2> <p> Returns the arctangent of <span class="emphasis"><em>x</em></span> (<span class="emphasis"><em>x</em></span> in radians). </p> </div> <div class="refsect1"> <a id="idm281472879290680"></a> <h2>Syntax</h2> <pre class="synopsis"><span class="command"><strong>taninv</strong></span>(x) (no rate restriction)</pre> <pre class="synopsis"><span class="command"><strong>taninv</strong></span>(k/i[]) (k- or i-arrays )</pre> </div> <div class="refsect1"> <a id="idm281472879287288"></a> <h2>Examples</h2> <p> Here is an example of the taninv opcode. It uses the file <a class="ulink" href="examples/taninv.csd" target="_top"><em class="citetitle">taninv.csd</em></a>. </p> <div class="example"> <a id="idm281472879285512"></a> <p class="title"> <strong>Example 998. Example of the taninv opcode.</strong> </p> <div class="example-contents"> <p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p> <div class="refsect1"> <a id="idm281472700805976"></a> <pre class="programlisting"> <span class="nt"><CsoundSynthesizer></span> <span class="nt"><CsOptions></span> <span class="c1">; Select audio/midi flags here according to platform</span> <span class="c1">; Audio out Audio in</span> -odac -iadc <span class="c1">;;;RT audio I/O</span> <span class="c1">; For Non-realtime ouput leave only the line below:</span> <span class="c1">; -o taninv.wav -W ;;; for file output any platform</span> <span class="nt"></CsOptions></span> <span class="nt"><CsInstruments></span> <span class="c1">; Initialize the global variables.</span> <span class="vg">sr</span> <span class="o">=</span> <span class="mi">44100</span> <span class="vg">kr</span> <span class="o">=</span> <span class="mi">4410</span> <span class="vg">ksmps</span> <span class="o">=</span> <span class="mi">10</span> <span class="vg">nchnls</span> <span class="o">=</span> <span class="mi">1</span> <span class="c1">; Instrument #1.</span> <span class="kd">instr</span> <span class="nf">1</span> i<span class="n">rad</span> <span class="o">=</span> <span class="mf">0.5</span> i<span class="n">1</span> <span class="o">=</span> <span class="nb">taninv</span><span class="p">(</span>i<span class="n">rad</span><span class="p">)</span> <span class="nb">print</span> i<span class="n">1</span> <span class="kd">endin</span> <span class="nt"></CsInstruments></span> <span class="nt"><CsScore></span> <span class="c1">; Play Instrument #1 for one second.</span> <span class="nb">i</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mi">1</span> <span class="nb">e</span> <span class="nt"></CsScore></span> <span class="nt"></CsoundSynthesizer></span> </pre> </div> </div> </div> <p><br class="example-break" /> Its output should include a line like this: </p> <pre class="screen">instr 1: i1 = 0.464</pre> <p> </p> </div> <div class="refsect1"> <a id="idm281472879280552"></a> <h2>See Also</h2> <p> <a class="link" href="cos.html" title="cos"><em class="citetitle">cos</em></a>, <a class="link" href="cosh.html" title="cosh"><em class="citetitle">cosh</em></a>, <a class="link" href="cosinv.html" title="cosinv"><em class="citetitle">cosinv</em></a>, <a class="link" href="sin.html" title="sin"><em class="citetitle">sin</em></a>, <a class="link" href="sinh.html" title="sinh"><em class="citetitle">sinh</em></a>, <a class="link" href="sininv.html" title="sininv"><em class="citetitle">sininv</em></a>, <a class="link" href="tan.html" title="tan"><em class="citetitle">tan</em></a>, <a class="link" href="tanh.html" title="tanh"><em class="citetitle">tanh</em></a>, <a class="link" href="taninv2.html" title="taninv2"><em class="citetitle">taninv2</em></a> </p> </div> <div class="refsect1"> <a id="idm281472879270920"></a> <h2>Credits</h2> <p>Author: John ffitch</p> <p>New in version 3.48</p> <p>Example written by Kevin Conder.</p> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="tanh.html">Prev</a> </td> <td width="20%" align="center"> <a accesskey="u" href="OpcodesTop.html">Up</a> </td> <td width="40%" align="right"> <a accesskey="n" href="taninv2.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">tanh </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> taninv2</td> </tr> </table> </div> </body> </html>