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. 

SEE ALSO

math(3M)

DIAGNOSTICS

Negative arguments cause y0, y1, and yn to return −∞ and set errno to EDOM. 

PRPQs 5799-WZQ/5799-PFF: IBM/4.3  —  30 Sept 1985