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Stirling's formula

[stur-lingz] /ˈstɜr lɪŋz/
noun, Mathematics
1.
a relation that approximates the value of n factorial (n!), expressed as .
Origin
1925-1930
1925-30; after James Stirling (died 1770), Scottish mathematician
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for stirling's-formula

Stirling's formula

noun
1.
a formula giving the approximate value of the factorial of a large number n, as n! approxeq (n/e)n√(2πn)
Word Origin
named after James Stirling (1692–1770), Scottish mathematician
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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