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ロジスティック写像の分岐図
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<meta charset="utf-8">
<title>logistic</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function () {
var canvas = document.getElementById('myCanvas');
var ctx = canvas.getContext('2d');
var a0 = 2.5;
var x0 = 0.1;
var a = a0;
function loop(){
var x = x0;
a += 0.001;
for(var i=0; i<100; ++i){
x = a*x*(1-x);
}
for(var i=0; i<100; ++i){
x = a*x*(1-x);
ctx.fillRect((a-a0)*600,x*600,1,1);
}
if(a<4.0){
setTimeout(loop, 0);
}
};
loop();
} );
</script>
</head>
<body>
<div style="margin: 0 auto; width: 910px;">
<canvas id="myCanvas" width="900" height="600" style="border: solid 1px;"></canvas><br />
<a href="https://gist.github.com/sasekazu/1c1acd437b7a4466d50c#file-gistfile1-js">ソースコード</a>
</div>
</body>
</html>
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