Compute the Bessel function.
double _j0(
double x
);
double _j1(
double x
);
double _jn(
int n,
double x
);
Parameters
x
Floating-point value.n
Integer order of Bessel function.
Return Value
Each of these routines returns a Bessel function of x. You can modify error handling by using _matherr.
Remarks
The _j0, _j1, and _jn routines return Bessel functions of the first kind: orders 0, 1, and n, respectively.
Input |
SEH Exception |
Matherr Exception |
|---|---|---|
± QNAN,IND |
INVALID |
_DOMAIN |
Requirements
Routine |
Required header |
|---|---|
_j0 |
<math.h> |
_j1 |
<math.h> |
_jn |
<math.h> |
For additional compatibility information, see Compatibility in the Introduction.
Example
See Bessel Functions for an example.
.NET Framework Equivalent
Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.