File: sinewaves.html

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jsxgraph 1.3.5+dfsg1-2
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<html>
<head>
   <title>JSXGraph example</title>
   <link rel="stylesheet" type="text/css" href="../distrib/jsxgraph.css" />
   <script type="text/javascript" src="/javascript/prototype/prototype.js"></script>
   <script type="text/javascript" src="../src/loadjsxgraph.js"></script>
</head>
<body>
<h2>Sine waves</h2>
<div style="width:960px">
    <div id="jxgbox" class="jxgbox" style="width:600px; height:400px; float:left; "></div>
</div>
<br clear=all>
<div id="debug" style="display:block;"></div>
   <script type="text/javascript">
    /* <![CDATA[ */
    board1 = JXG.JSXGraph.initBoard('jxgbox', {originX: 300, originY: 200, unitX: 50, unitY: 50});
    board1.suspendUpdate();
    board1.createElement('axis', [[0,0], [1,0]], {ticksDistance: 0.6});
    board1.createElement('axis', [[0,0], [0,1]], {});
    var s = board1.createElement('slider', [[-0.75,-2.5],[4.75,-2.5],[0,0,10]], {name:'S',snapWidth:1});
    board1.createElement('curve', [
        'x', 
        function(t) {
            var val = 0;
            var k = 1;
            for(var i = 0; i < s.Value() + 1; i++) {
                val = val + Math.sin(2*Math.PI*k*t)/k;
                k += 1;
            }
            return val+2;
            }, -10, 10], {strokeColor: "#bb0000", curveType:'plot'});
    
        board1.createElement('curve', [
            'x', 
            function(t) {
                var val = 0, i,
                k = 1,
                sv = s.Value();
                
                for(i = 0; i < sv + 1; i++) {
                    val = val + Math.sin(2*Math.PI*(2*k-1)*t)/(2*k-1);
                    k += 1;
                }
                return val-2;
                }, -10, 10], {strokeColor: "#cc5520", curveType:'plot'});
    board1.unsuspendUpdate();        
  /* ]]> */
  </script>
</body>
</html>