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How to derive the volume of an n-dimensional hypersphere (the long version)

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Uploaded on Feb 17, 2012

I was trying to get a better intuition for "the curse of dimensionality" in machine learning, and needed to know the volume of a unit n-sphere -- so I remembered how to derive it. This derivation is quick, easy, and cool, and I want to share it with the world :) This is the detailed version of my 3-minute derivation (http://youtu.be/QkMn_5QpsX8)

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