j0(), j1(), jn(), y0(), y1(), yn() - bessel functions of first and second kind
#include <math.h>
double j0 (double x)
double j1 (double x)
double jn (int n, double x)
double y0 (double x)
double y1 (double x)
double yn (int n, double x)
The functions j0(3) and j1(3) compute the Bessel function of the first kind of the order 0 and the order 1, respectively, for the real value x; the function jn(3) computes the Bessel function of the first kind of the integer order n for the real value x.
The functions y0(3) and y1(3) compute the linearly independent Bessel function of the second kind of the order 0 and the order 1, respectively, for the positive integer value x (expressed as a double); the function yn(3) computes the Bessel n for the positive integer value x (expressed as a double).
If these functions are successful, the computed value is returned.
math(3)
infnan(3)
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