by Ricardo Fernández Serrata
Version 1 (May 17, 2021)
Download (118 downloads)
Contains the standard and multi factorial functions with support for Real and/or negative numbers.
Float output doesn't match the Gamma function but it's quite close.
Stirling's Approximation (fast fact. for non-integers):
sqrt(2*Pi * x) * pow(x / exp(1), x)
Future: rising & falling facts. Also inverse functions of everything here.
ℹ en.wikipedia.org/wiki/Factorial
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