Harmonic Waves: Difference between revisions
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<html> | <html> | ||
<link rel="stylesheet" type="text/css" href="http://jsxgraph.uni-bayreuth.de/distrib/jsxgraph.css" /> | <link rel="stylesheet" type="text/css" href="http://jsxgraph.uni-bayreuth.de/distrib/jsxgraph.css" /> | ||
<script type="text/javascript" src="http://jsxgraph.uni-bayreuth.de/distrib/jsxgraphcore.js"></script> | <script type="text/javascript" src="http://jsxgraph.uni-bayreuth.de/distrib/jsxgraphcore.js"></script> | ||
<div id="jxgbox1" class="jxgbox" style="width:600px; height:500px;"></div> | <div id="jxgbox1" class="jxgbox" style="width:600px; height:500px;"></div> | ||
Revision as of 17:07, 29 October 2009
board1 = JXG.JSXGraph.initBoard('jxgbox1', {originX: 300, originY: 200, unitX: 50, unitY: 50});
board1.suspendUpdate();
board1.createElement('axis', [[0,0], [1,0]], {});
board1.createElement('axis', [[0,0], [0,1]], {});
var s = board1.createElement('slider', [[0.75,-2],[4.5,-2],[0,0,10]], {name:'S',snapWidth:1});
board1.createElement('functiongraph', [
function(t) {
var val = 0, sv = s.Value()+1,
k = 1;
for(var i = 0; i < sv; i++) {
val = val + Math.sin(2*Math.PI*k*t)/k;
k += 1;
}
return val+2;
}, -10, 10], {strokeColor: "#bb0000"});
board1.createElement('functiongraph', [
function(t) {
var val = 0, sv = s.Value()+1,
k = 1;
for(var i = 0; i < sv; i++) {
val = val + Math.sin(2*Math.PI*(2*k-1)*t)/(2*k-1);
k += 1;
}
return val-2;
}, -10, 10], {strokeColor: "#cc5520"});
board1.unsuspendUpdate();
