XLPack 7.0
XLPack Numerical Library (Excel VBA) Reference Manual
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◆ Poch()

Function Poch ( A As  Double,
X As  Double,
Optional Info As  Long 
)

Pochhammer's symbol (a)x

Purpose
Computes the Pochhammer's symbol.
(a)x = Γ(a + x)/Γ(a)
Returns
Double
Pochhammer's symbol (a)x.
Parameters
[in]AArgument a. (If A + X = 0 or a negative integer, A must be 0 or a negative integer)
[in]XArgument x.
[out]Info(Optional)
= 0: Successful exit.
= -1: The argument A had an illegal value. (When A + X = 0 or a negative integer, A is not 0 nor a negative integer)
= 1: Floating point range error.