besj0 besj1 besjn besjnd besjnu besjnud besy0 besy1 besyn besynd besynu besynud cbesh cbesj cbesy sbesjn sbesjnu sbesyn sbesynu

besynd() double besynd ( int  n, double  x  ) Derivative Y'n(x) of Bessel functions of the second kind of order n Yn(x) Purpose besynd computes the derivative Y'n(x) of the Bessel function of the second kind of order n Yn(x). Returns Y'n(x). Parameters [in] n Order n. [in] x Argument x (x > 0). Error handling If x <= 0, domain error (EDOM) occurs. Range error (ERANGE) may occur. Reference boost/math/special_functions