lowergamma {rxode2}

lowergamma: upper incomplete gamma function

Description

This is the tgamma_lower from the boost library

Usage

lowergamma(a, z)

Arguments

a

The numeric 'a' parameter in the upper incomplete gamma

z

The numeric 'z' parameter in the upper incomplete gamma

Details

The lowergamma function is given by:

lowergamma(a, z) = \int_{0}^{z}t^{a-1}\cdot e^{-t} dt

Value

lowergamma results

Author(s)

Matthew L. Fidler

Examples

lowergamma(1, 3)

lowergamma(1:3, 3)

lowergamma(1, 1:3)