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

besy1() double besy1 ( double  x ) Bessel functions of the second kind of order one Y1(x) Purpose besynu computes the Bessel function of the second kind of order one Y1(x). Returns Bessel functions of the second kind of order one Y1(x). Parameters [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