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Bessel Functions: _y0, _y1, _yn

Compute the Bessel function.

double _y0( 
   double x 
);
double _y1( 
   double x 
);
double _yn( 
   int n,
   double x 
);

x

Floating-point value.

n

Integer order of Bessel function.

Each routine returns a Bessel function of x. If x is negative, the routine sets errno to EDOM, prints a _DOMAIN error message to stderr, and returns _HUGE_VAL. You can modify error handling by using _matherr.

The _y0, _y1, and _yn routines return Bessel functions of the second kind: orders 0, 1, and n, respectively.

Input

SEH Exception

Matherr Exception

± QNAN,IND

INVALID

_DOMAIN

± 0

ZERODIVIDE

_SING

|x|<0.0

INVALID

_DOMAIN

Routine

Required header

_y0

<math.h>

_y1

<math.h>

_yn

<math.h>

For additional compatibility information, see Compatibility in the Introduction.

See Bessel Functions for an example.

Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.

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