Google can do complex calculation..!!

Google is a full-fledged calculator. You'll understand this when you start typing math equations into the search box. Try a simple problem such as 5 X 2, and press Search. Google immediately goes into calculator mode, showing you the answer instantaneously. Want to get fancy? 

A math calculation such as 5*9+(sqrt 10)3 is as easy for Google as 2+2.