Hi all, Has anyone got the numerical expression for calculating the Fock scattering function when the Fock parameter ranges from -3.0 to 2.0? In the reference entitled: "Introduction the the Uniform Geometrical Theory of Diffraction" by D.A. McNamara, C.W.I. Pistorius, and J.A.G. Malherbe, the auhtors stated (in appendix F) that there are some FORTRAN subroutines to calculate that functions, namely: PFUN(X), and QFUN(X). I will be glad if anyone can provide me with those subroutines as well, in whatever programming language. Thanks.