**Math object in javascript:**
The Math object allows you to perform mathematical tasks.

The Math object includes several mathematical constants and methods.

**Syntax for using properties/methods of Math:
**

var x=Math.PI;

var y=Math.sqrt(16);

Note: Math is not a constructor. All properties and methods of Math can be called by using Math as an object without creating it.

You may reference these constants from your JavaScript like this:

Math.E

Math.PI

Math.SQRT2

Math.SQRT1_2

Math.LN2

Math.LN10

Math.LOG2E

Math.LOG10E

Example code:

document.write(Math.round(4.7)); -- 5

document.write(Math.random()); -- any random value 0.3121296588253678

The following example uses the floor() and random() methods of the Math object to return a random number between 0 and 10:

document.write(Math.floor(Math.random()*11));

**Script for getting random number <10 using JavaScript:**
<script type="text/javascript">

no=Math.random()*10

document.write(Math.floor(no))

</script>

References:

**http://www.cev.washington.edu/lc/CLWEBCLB/jst/js_math.html**
http://www.javascriptkit.com/javatutors/math.shtml
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