e/Jacobi-Anger Identity

Information
has gloss	eng: In mathematics, the Jacobi–Anger expansion (or Jacobi–Anger identity) is an expansion of exponentials of trigonometric functions in the basis of their harmonics. It is useful in physics (for example, to convert between plane waves and cylindrical waves), and in signal processing (to describe FM signals). This identity is named after the 19th-century mathematicians Carl Jacobi and Carl Theodor Anger.
lexicalization	eng: Jacobi-Anger expansion
lexicalization	eng: Jacobi-Anger Identity
lexicalization	eng: Jacobi–Anger expansion
lexicalization	eng: Jacobi–Anger identity
instance of	c/Mathematical identities