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## Complex Bessel functions

BesselJ(nu,z) is the Bessel function of the first kind J_nu for real argument nu and complex argument z. Supported via external library containing routines by Donald E. Amos, Sandia National Laboratories, SAND85-1018 (1985).

BesselY(nu,z) is the Bessel function of the second kind Y_nu for real argument nu and complex argument z. Supported via external library containing routines by Donald E. Amos, Sandia National Laboratories, SAND85-1018 (1985).

BesselI(nu,z) is the modified Bessel function of the first kind I_nu for real argument nu and complex argument z. Supported via external library containing routines by Donald E. Amos, Sandia National Laboratories, SAND85-1018 (1985).

BesselK(nu,z) is the modified Bessel function of the second kind K_nu for real argument nu and complex argument z. Supported via external library containing routines by Donald E. Amos, Sandia National Laboratories, SAND85-1018 (1985).

BesselH1(nu,z) and BesselH2(nu,z) are the Hankel functions of the first and second kind

        H1(nu,z) = J(nu,z) + iY(nu,z)
        H2(nu,z) = J(nu,z) - iY(nu,z)

for real argument nu and complex argument z. Supported via external library containing routines by Donald E. Amos, Sandia National Laboratories, SAND85-1018 (1985).