Math.exp()

Math.exp(x) ;

<script language='JavaScript' type='text/JavaScript'>
<!--
document.write(Math.exp(2)); // output is 7.38905609893065
document.write("<br>");
document.write(Math.exp(1)); // output is 2.718281828459045
document.write("<br>");
document.write(Math.exp(-2)); // output is 0.1353352832366127
document.write("<br>");
document.write(Math.exp(.25)); // output is 1.2840254166877414
document.write("<br>");
document.write(Math.exp(-0.46)); // output is 0.631283645506926 
//-->
</script>