Evaluates a sequence of modified Bessel functions of the first kind with real order and real argument.
double
representing the lowest order desired. xnu
must be at least zero and less than 1. double
representing the argument of the Bessel functions to be evaluated. int
order of the last element in the sequence. A double
array of length n
+ 1 containing the values of the function through the series.
Bessel.I[i] contains the value of the Bessel function of order i+xnu
.
Here, argument xnu
is represented by in the above equation.
The input x
must be nonnegative and less than or equal to log(b) (b is the largest representable number). The argument = xnu
must satisfy .
This function is based on a code due to Cody (1983), which uses backward recursion.
Bessel Class | Imsl.Math Namespace | Bessel.I Overload List