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golf a bit with lambda

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edited Oct 14, 2015 at 17:55

Python, 4343 38

import math
deff=lambda f(n):return math.gamma(n+1)

Explanation: The gamma function is a very quickly-growing complex function which, at integer values, is equal to the factorial of one less than the number. So we add one to n and take the gamma function of it.

I hope this isn't considered cheating, since the gamma function is not technically able to directly calculate the factorial.

Python, 43

import math
def f(n):return math.gamma(n+1)

I hope this isn't considered cheating, since the gamma function is not technically able to directly calculate the factorial.

Python, 43 38

import math
f=lambda n:math.gamma(n+1)

I hope this isn't considered cheating, since the gamma function is not technically able to directly calculate the factorial.

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created Oct 14, 2015 at 17:47

Skyler

Python, 43

import math
def f(n):return math.gamma(n+1)

I hope this isn't considered cheating, since the gamma function is not technically able to directly calculate the factorial.