BesselK Method (Double, Double, Int32) |
Evaluates a sequence of modified Bessel functions of the third kind
with fractional order and real argument.
Namespace: Imsl.MathAssembly: ImslCS (in ImslCS.dll) Version: 6.5.2.0
Syntax public static double[] K(
double xnu,
double x,
int n
)
Public Shared Function K (
xnu As Double,
x As Double,
n As Integer
) As Double()
public:
static array<double>^ K(
double xnu,
double x,
int n
)
static member K :
xnu : float *
x : float *
n : int -> float[]
Parameters
- xnu
- Type: SystemDouble
A double representing the fractional order of the function.
xnu must be less than one in absolute value.
- x
- Type: SystemDouble
A double representing the argument for which the sequence of
Bessel functions is to be evaluated.
- n
- Type: SystemInt32
A int representing the order of the last element in the
sequence. If order is the highest order desired, set n to
int(order).
Return Value
Type:
Double
A
double array of length n+1 containing the values of the
function through the series.
Remarks
Bessel.K[I] contains the value of the Bessel function of order I + v
at x for I = 0 to n.
The Bessel function
is defined to be
Currently,
xnu (represented by
in the
above equation) is restricted to be less than one in absolute value.
A total of
n values is stored in the result,
K.
K,
K,
, K.
This method is based on the work of Cody (1983).
See Also