Special.Factorial2 Method

Returns the double factorial of a positive integer.

Definition

Namespace: Numerics.NET
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 9.0.2

public static double Factorial2(
	int n
)

Visual Basic

Public Shared Function Factorial2 ( 
	n As Integer
) As Double

C++/CLI

public:
static double Factorial2(
	int n
)

static member Factorial2 : 
        n : int -> float

Double
The double factorial of n.

The double factorial of a number n is the product of every second integer up to and including n.

OverflowException	the result is too large.
ArgumentOutOfRangeException	n is less than zero.