You like Maths? Then you will like this website.

This is a wonderful website for the people who like Mathematics. Type any mathematical equation you want to see as graph, the website computes dynamically (not the static images) and generate the graphs.
It also provides the information relevant to your search. By the way it's not like Google. Its like simulator (I mean it really computes!!). I got to know this website from my friend Jimmy.

http://www.wolframalpha.com/