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on April 12, 2015
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Defining zero factorial
For fun you can try out non-integral factorial values. For example, type in (1/2)! into WolframAlpha or Google, and you'll find the answer is the square root of pi over 2.
This is due to the gamma function extension:
https://www.youtube.com/watch?v=QhDDpSju3uY
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This is due to the gamma function extension: https://www.youtube.com/watch?v=QhDDpSju3uY