Function:     bessy

Purpose:      Evaluate Bessel function second kind and of integer order.

Category:     MATH

File:         bessel.c

Author:       M.G.R. Vogelaar

Use:          #include "bessel.h"
              double   result; 
              result = bessy( int n,
                              double x )


              bessy    Return the Bessel function of second kind and
                       of integer order, for input value x.
              n        Integer order of Bessel function.
              x        Double at which the function is evaluated.

                      
Description:  bessy evaluates at x the Bessel function of the second kind
              and of integer order n.
              This routine is NOT callable in FORTRAN.

Updates:      Jun 29, 1998: VOG, Document created.