Riccati-Bessel functions

Riccati-Bessel functions

[ri′käd·ē ′bes·əl ‚fəŋk·shənz] (mathematics) Solutions of a second-order differential equation in a complex variable which have the form z ƒ(z), where ƒ(z) is a function in terms of polynomials and cos (z), sin (z).