|AdvancedMathGamma Method (Double, Double)|
public static double Gamma( double a, double x )
Public Shared Function Gamma ( a As Double, x As Double ) As Double
public: static double Gamma( double a, double x )
static member Gamma : a : float * x : float -> float
The incomplete Gamma function is defined by the same integrand as the Gamma function (Gamma(Double)), but the integral is not taken over the full positive real axis.
Like the Γ function itself, this function gets large very quickly. For most purposes, you will prefer to use the regularized incomplete gamma functions LeftRegularizedGamma(Double, Double) and RightRegularizedGamma(Double, Double).