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Topic: Stirling's approximation
Replies: 6   Last Post: Jul 13, 1996 12:28 AM

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Damian Burch

Posts: 6
Registered: 12/12/04
Stirling's approximation
Posted: Jul 11, 1996 1:56 AM
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I have seen the following referred to as Stirling's approximation.

n! = sqrt(2*pi*n) * (n/e)^n * e^(1/12n - 1/360n^3 + 1/1260n^5)
<the '=' should be approximate>.

Is this the correct formula, and if so, does anyone know how it might
have been derived?







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