# Computations and Approximations for Bessel Functions

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 Airy Airy Functions (and Their First Derivative) AiryA Airy Functions (and Their First Derivative) AiryB Airy Functions (and Their First Derivative) BesselH Hankel (H-Bessel) Function (of Complex Argument) BesselI Bessel Functions of Complex Arguments I(), J(), K(), and Y() besselI.ftrms Asymptotic Expansion of Bessel I(x,nu) and K(x,nu) For Large x besselI.nuAsym Asymptotic Expansion of Bessel I(x,nu) and K(x,nu) for Large nu (and x) besselIasym Asymptotic Expansion of Bessel I(x,nu) and K(x,nu) For Large x besselIs Bessel I() function Simple Series Representation BesselJ Bessel Functions of Complex Arguments I(), J(), K(), and Y() besselJs Bessel J() function Simple Series Representation BesselK Bessel Functions of Complex Arguments I(), J(), K(), and Y() besselK.nuAsym Asymptotic Expansion of Bessel I(x,nu) and K(x,nu) for Large nu (and x) besselKasym Asymptotic Expansion of Bessel I(x,nu) and K(x,nu) For Large x BesselY Bessel Functions of Complex Arguments I(), J(), K(), and Y() bI Bessel I() function Simple Series Representation Hankel Hankel (H-Bessel) Function (of Complex Argument)