wolframalpha.com

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Competing rank
 

1.48 out of 5 by TopAlternate
Reviewed on Oct 4st, 2015
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Wolfram|Alpha: Computational Knowledge Engine

Wolfram|Alpha is more than a search engine. It gives you access to the world's facts and data and calculates answers across a range of topics, including science, nutrition, history, geography, engineering, mathematics, linguistics, sports, finance, music...

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