Stirling's formula


Stir·ling's formula

noun \ˈstər-liŋz-\

Definition of STIRLING'S FORMULA

:  a formula that approximates the value of the factorial of a very large number n and that consists of the product of three terms of which the first consists of n raised to the exponent n, the second consists of the transcendental number e raised to the negative exponent n, and the third consists of the square root of the product of 2n times the transcendental number π

Origin of STIRLING'S FORMULA

James Stirling †1770 Scottish mathematician
First Known Use: 1908

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