@(#)j0.3 6.1 (Berkeley) 05/15/85
J0 3M ""
.AT 3
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) double x;
double y0(x) double x;
double y1(x) double x;
double yn(n, x) double x;
DESCRIPTION
These functions calculate Bessel functions of the first
and second kinds for real arguments and integer orders.
DIAGNOSTICS
Negative arguments cause
y0, y1, and
yn to return a huge negative value and set
errno to EDOM.