WBesi WBesid WBesk WBeskd WSbesi WSbesk

WBesi() Function WBesi ( X As  Double, Nu As  Double  ) Modified Bessel function of the first kind of order ν Iν(x) (fractional order) Purpose WBesi computes the modified Bessel function of the first kind of order ν Iν(x). Returns Modified Bessel function of the first kind of order ν Iν(x). Parameters [in] X Argument x. (X >= 0 if ν is not an integer) [in] Nu Order ν. Reference boost/math/special_functions