<html><head><title>CuspL</title>
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<div id='label'>SuperCollider CLASSES</div>
<div id='categories'><a href='./../Browse.html#UGens>Generators>Chaotic'>UGens>Generators>Chaotic</a></div>
<h1>CuspL</h1>
<div id='summary'>Cusp map chaotic generator</div>
</div>
<div class='subheader'>
<div id='filename'>Source: <a href='file:///Applications/SuperCollider.app/Contents/Resources/SCClassLibrary/Common/Audio/Chaos.sc'>/Applications/SuperCollider.app/Contents/Resources/SCClassLibrary/Common/Audio/Chaos.sc</a></div><div id='superclasses'>Inherits from: <a href="../Classes/CuspN.html">CuspN</a> : <a href="../Classes/ChaosGen.html">ChaosGen</a> : <a href="../Classes/UGen.html">UGen</a> : <a href="../Classes/AbstractFunction.html">AbstractFunction</a> : <a href="../Classes/Object.html">Object</a></div>
<div id='related'>See also: <a href="./../Classes/CuspN.html">CuspN</a></div>
</div>
<div id='toc'>
<ul class='toc'><li class='toc1'><a href='#description'>Description</a></li>
<ul class='toc'></ul><li class='toc1'><a href='#classmethods'>Class methods</a></li>
<ul class='toc'><li class='toc3'><a href='#*ar'>ar</a> </li>
<li class='toc2'><a href='#Inherited%20class%20methods'>Inherited class methods</a></li>
</ul><li class='toc1'><a href='#instancemethods'>Instance methods</a></li>
<ul class='toc'><li class='toc2'><a href='#Inherited%20instance%20methods'>Inherited instance methods</a></li>
</ul><li class='toc1'><a href='#examples'>Examples</a></li>
<ul class='toc'></ul></ul></div><h2><a class='anchor' name='description'>Description</a></h2>
<p>A linear-interpolating sound generator based on the difference equation:<pre> x(n+1) = a - b * sqrt(|x(n)|)</pre>
<p>sclang code translation:<pre class='code prettyprint lang-sc'>(
var a = 1.0, b = 1.9, xi = 0, size = 64;
plot(size.collect { xi = a - (b * sqrt(abs(xi))) });
)</pre>
<h2><a class='anchor' name='classmethods'>Class Methods</a></h2>
<h3 class='cmethodname'><span class='methprefix'>*</span><a name='*ar' href='./../Overviews/Methods.html#ar'>ar</a> (<span class='argstr'>freq: 22050</span>, <span class='argstr'>a: 1</span>, <span class='argstr'>b: 1.9</span>, <span class='argstr'>xi: 0</span>, <span class='argstr'>mul: 1</span>, <span class='argstr'>add: 0</span>)</h3>
<div class='supmethod'>From superclass: <a href='./../Classes/CuspN.html'>CuspN</a></div>
<div class='method'><h4>Arguments:</h4>
<table class='arguments'>
<tr><td class='argumentname'>freq<td class='argumentdesc'>
<p>Iteration frequency in Hertz<tr><td class='argumentname'>a<td class='argumentdesc'>
<p>Equation variable<tr><td class='argumentname'>b<td class='argumentdesc'>
<p>Equation variable<tr><td class='argumentname'>xi<td class='argumentdesc'>
<p>Initial value of x</table></div><h3><a class='anchor' name='Inherited%20class%20methods'>Inherited class methods</a></h3>
<div id='inheritedclassmets'></div><h2><a class='anchor' name='instancemethods'>Instance Methods</a></h2>
<h3><a class='anchor' name='Inherited%20instance%20methods'>Inherited instance methods</a></h3>
<div id='inheritedinstmets'></div><h2><a class='anchor' name='examples'>Examples</a></h2>
<pre class='code prettyprint lang-sc'>// vary frequency
{ CuspL.ar(MouseX.kr(20, SampleRate.ir), 1.0, 1.99) * 0.3 }.play(s);
// mouse-controlled params
{ CuspL.ar(SampleRate.ir/4, MouseX.kr(0.9,1.1,1), MouseY.kr(1.8,2,1)) * 0.3 }.play(s);
// as a frequency control
{ SinOsc.ar(CuspL.ar(40, MouseX.kr(0.9,1.1,1), MouseY.kr(1.8,2,1))*800+900)*0.4 }.play(s);</pre>
<p><div class='doclink'>helpfile source: <a href='file:///Applications/SuperCollider.app/Contents/Resources/HelpSource/Classes/CuspL.schelp'>/Applications/SuperCollider.app/Contents/Resources/HelpSource/Classes/CuspL.schelp</a><br>link::Classes/CuspL::<br>sc version: 3.8.0</div></div></body></html>