Compute Appell's F1 hypergeometric function
Description
This package wraps Fortran code by F. D. Colavecchia and
G. Gasaneo for computing the Appell's F1 hypergeometric
function. Their program uses Fortran code by L. F. Shampine and
H. A. Watts. Moreover, the hypergeometric function with complex
arguments is computed with Fortran code by N. L. J. Michel and
M. V. Stoitsov or with Fortran code by R. C. Forrey. See the
function documentations for the references and please cite them
accordingly.