math.exp function in javascript returns e raised to a power.
You can use this like :
Math.exp(number)
where number is a numeric expression representing the power of e.
Note: constant e is Euler’s number, approximately equal to 2.71828 and number is the supplied argument.
<html>
<body>
<script language="JavaScript">
<!--
function CalculateResult(){
var Number1=document.form1.txtNumber1.value;
var result = Math.exp(Number1);
document.form1.answer.value = result;
}
-->
</script>
<form name=form1>
Enter power of e:
<input type="text" name="txtNumber1">
<br>
<input type="button" value="Calculate" onClick='CalculateResult()'>
<br>
result :
<input type="text" name="answer" size=10>
</form>
</body>
</html>