WorksheetFunction.BesselK (Excel)

Returns the modified Bessel function, which is equivalent to the Bessel functions evaluated for purely imaginary arguments.

If x is nonnumeric, BesselK generates an error value. If n is nonnumeric, BesselK generates an error value. If n < 0, BesselK generates an error value. The n-th order modified Bessel function of the variable x is where Jn and Yn are the J and Y Bessel functions, respectively.

BesselK (Arg1, Arg2)

Dim dblBesselK As Double
dblBesselK = WorksheetFunction.BesselK(Arg1:=, Arg2:=)

Arguments

Arg1 - The value at which to evaluate the function

Arg2 - The order of the function. If n is not an integer, it is truncated