J0(3M) — UNIX Programmer’s Manual
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
Negative arguments cause y0, y1 and yn to return NaN(Not a Number).
SEE ALSO
NEWS-OSRelease 3.3