| J0(3) | Library Functions Manual | J0(3) | 
j0, j0f,
  j1, j1f,
  jn, jnf,
  y0, y0f,
  y1, y1f,
  yn, ynf —
#include <math.h>
double
  
  j0(double
    x);
float
  
  j0f(float
    x);
double
  
  j1(double
    x);
float
  
  j1f(float
    x);
double
  
  jn(int
    n, double x);
float
  
  jnf(int
    n, float x);
double
  
  y0(double
    x);
float
  
  y0f(float
    x);
double
  
  y1(double
    x);
float
  
  y1f(float
    x);
double
  
  yn(int
    n, double x);
float
  
  ynf(int
    n, float x);
j0(), j0f(),
  j1() and j1f() compute the
  Bessel function of the first kind of the order 0 and the
  order 1, respectively, for the real value
  x; the functions jn() and
  jnf() compute the Bessel function of the
  first kind of the integer order n for the real value
  x.
The functions y0(),
    y0f(), y1() and
    y1f() 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 functions yn() and
    ynf() compute the Bessel function of
    the second kind for the integer order n for the
    positive integer value x (expressed
    as a double).
EDOM and a reserve operand fault is generated.
| April 19, 1991 | NetBSD 9.3 |