Google as Calculator
/The all-powerful search engine is good at more than finding web pages; it can find results to mathematical equations, too.
Search for expressions like 2 + 3 or 4 * 6 to get the results right in the browser. In fact, the site also understands phrases. Entering two plus three yields 5 as the answer. It knows the order of operations, trigonometry, exponents, and factorial, too.
Google displays an on-screen calculator along with the answer. Use the calculator to perform additional computations or just search again.
It can also make graphs. Learn more about what it can do.