y0(), y1(), yn()

Bessel functions of the second kind

Synopsis:

#include <math.h>
double y0( double x );
double y1( double x );
double yn( int n, double x );

Description:

Functions y0(), y1(), and yn() return Bessel functions of the second kind.

The argument x must be positive. If it is negative, _matherr() is called to print a DOMAIN error message to stderr, set errno to EDOM, and return the value -HUGE_VAL. This error handling can be modified by using the matherr() routine.

Returns:

The result of the desired Bessel function of x.

Examples:

See j0(), j1(), jn().

Classification:

WATCOM

See also:

errno, j0(), j1(), jn(), matherr()