Bessel function

noun

Mathematics.

1. one of several transcendental functions, usually represented as power series, that are solutions to a group of related differential equations.

Word History and Origins

Origin of Bessel function¹

First recorded in 1870–75; named after F. W. Bessel

Example Sentences

From this treatment, the theoretical correlation function iswhere J1 is the Bessel function of the first kind and is the wavenumber of an outgoing atom in the final state.

Read more on Nature