# 2.11BSD#431 - /usr/man/cat3/yn.0

    J0(3M)		    UNIX Programmer's Manual		   J0(3M)

    NAME
         j0, j1, jn, y0, y1, yn - bessel functions

    SYNOPSIS
         #include <math.h>

         double j0(x)
         double x;

         double j1(x)
         double x;

         double jn(n,x)
         int n;
         double x;

         double y0(x)
         double x;

         double y1(x)
         double x;

         double yn(n,x)
         int n;
         double x;

    DESCRIPTION
         These functions calculate Bessel functions of the first and
         second kinds for real arguments and integer orders.

    DIAGNOSTICS
         On a VAX, negative arguments cause y0, y1 and yn to return
         the reserved operand and set errno to EDOM.

    SEE ALSO
         math(3M), infnan(3M)

    Printed 11/26/99	  May 12, 1986				1

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