./_Man_NeXT_html/html3/j0.3m.html

Manual page for J0(3M)

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

#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;

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