Zero Factorial - Numberphile

0! = 1
Dr James Grime tries to explain why this is the case - follow James on Twitter at https://twitter.com/jamesgrime
More links & stuff in full description below ↓↓↓
Regarding the equation at the end - James says it should be e^-t dt NOT e^-n dn ... sorry for the mix-up!

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Видео Zero Factorial - Numberphile канала Numberphile