from wikipedia:
It will compute everything you want to know thats factual data.Wolfram Alpha (also spelled WolframAlpha or Wolfram|Alpha) is an answer-engine developed by Wolfram Research. It is an online service that answers factual queries directly by computing the answer from structured data, instead of providing a list of documents or web pages that might contain the answer.[3] It was announced in March 2009 by British physicist Stephen Wolfram, and was released to the public on May 15, 2009.[1]
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