AdvancedMathPsi(Int32, Double) Method

public static double Psi(
	int n,
	double x
)

Public Shared Function Psi ( 
	n As Integer,
	x As Double
) As Double

public:
static double Psi(
	int n, 
	double x
)

static member Psi : 
        n : int * 
        x : float -> float 

Parameters

n  Int32

The order, which must be non-negative.

x  Double

The argument.

Return Value

The polygamma function gives higher logarithmic derivatives of the Gamma function.

Reference

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