Seonglae ChoStirling’s Formula
Stirling's approximation
Stirling's approximation
In mathematics, Stirling's approximation is an approximation for factorials. It is a good approximation, leading to accurate results even for small values of . It is named after James Stirling, though a related but less precise result was first stated by Abraham de Moivre.
https://en.wikipedia.org/wiki/Stirling's_approximation
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