Hantush's M(α, β) and M~*(α, β) are Generalized Incomplete Exponential Functions

摘要

It is pointed out that Hantush's M(α, β) and M~*(α, β) functions, two functions that arise with respect to groundwater pumping modeling, are particular cases of the generalized incomplete exponential functions known in the mathematics/statistics literature. Some relevant computational issues are discussed.