Stirling's formula

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Stirling's formula

n
(Mathematics) a formula giving the approximate value of the factorial of a large number n, as n! (n/e)n√(2πn)
[named after James Stirling (1692–1770), Scottish mathematician]
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References in periodicals archive ?
Using Stirling's approximation, we conclude the globally valid bound
For the asymptotic analysis of the behaviour of binomial coefficients appearing in b(t, k) we use Stirling's approximation. To state the result of the corresponding routine calculations in a concise form, for 0 < [lambda] < 1 let
Then, writing k = [lambda]t, routine calculation with the help of Stirling's approximation yields