<html> <head> <meta charset="utf-8"> <title>wikipedia</title> <script src="jquery.js"></script> <script type="text/javascript" src="jstat.js"></script> <script type="text/javascript" src="ren.js"></script> </head> <body onload="sample()"> </body> </html> function sample(){ var norm = new NormalDistribution(0,1); var q = norm.getQuantile(0.95); alert(q); }