  Dawson's integral and related functions in mathematical physics that include
the complex error function (Faddeeva's integral), Fried-Conte (plasma
dispersion) function, (Jackson) function, Fresnel function and Gordeyev's
integral are analytically evaluated in terms of the confluent hypergeometric
function.And hence, the asymptotic expansions of these functions on the complex
plane $\mathbb{C}$ are derived using the asymptotic expansion of the confluent
hypergeometric function.
