1)Hankel function of the second kind,第二类汉克尔函数2)Hankel function of the first kind,第一类汉克尔函数3)Hankel function;Bessel function of the third kind,第三类贝塞尔函数;汉克尔函数4)modified Bessel function of the second kind,变形第二类贝塞尔函数5)modified Hankel function,修正汉克尔函数6)Neumann function;Bessel function of the second kind,第二类贝塞尔函数;诺伊曼函数