XLPack 7.0
XLPack Numerical Library (Excel Worksheet Functions) Reference Manual
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◆ WGamic()

Function WGamic ( A As  Double,
X As  Double 
)

Complementary incomplete gamma function Γ(a, x)

Purpose
WGamic computes the complementary incomplete gamma function
Γ(a, x) = ∫ t^(a-1)*exp(-t) dt [x, ∞]
Returns
Complementary incomplete gamma function Γ(a, x).
Parameters
[in]AArgument a. (A > 0 if X = 0)
[in]XArgument x. (X >= 0)
Reference
boost/math/special_functions