WBesj WBesjd WBesy WBesyd WSbesj WSbesy

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