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Evaluates the gamma function or the incomplete gamma function. You must manually select the polymorphic instance you want to use.

Details  

Use the pull-down menu to select an instance of this VI.

Select an instance Gamma FunctionIncomplete Gamma Function

Gamma Function

	x is the real input of the gamma function.
	g(x) is the result of the gamma function for the given value of x.

Incomplete Gamma Function

	x is the real input of the incomplete gamma function. x must be nonnegative.
	a is the upper limit of the incomplete gamma function. The default value is Inf.
	g(x, a) is the result of the incomplete gamma function for the given values of x and a.

(Incomplete) Gamma Function Details

Gamma Function

The following equation defines the gamma function.

The gamma function is related to the factorial function by the identity (n + 1) = n! for integer n.

Incomplete Gamma Function

The following equation defines the incomplete gamma function.

The following illustration shows the incomplete gamma functions with a = 1, 2, 3, and 4 from top to bottom.