Math

Some Properties of the Math Object

<script>
document.write("Euler's constant - " + Math.E + "<br>Mmmm Pi - " + Math.PI + "<br>"); 
</script>

"Hey there you little sqrt."

<script>
var n = prompt("Enter a Number", "");
var answer = Math.sqrt(n);
alert("The square root of " + n + " is " + answer);
</script>