Bessel function

== English == === Etymology === For Friedrich Bessel, German mathematician. === Noun === Bessel function (plural Bessel functions) (mathematics) Any of a class of functions that are solutions to a particular form of differential equation (a Bessel equation) and are typically used to describe waves in a cylindrically symmetric system. ==== Synonyms ==== cylinder function ==== Hypernyms ==== function ==== Hyponyms ==== modified Bessel function Riccati-Bessel function spherical Bessel function ==== Related terms ==== Bessel function of the first kind Bessel function of the second kind ==== Translations ====