(** This file is an example of how to use power series. It defines and
gives properties of the Bessel functions. *)

Definition Bessel1_seq (n k : nat) :=
  (-1)^(k)/(INR (fact (k)) * INR (fact (n + (k)))).

Lemma CV_Bessel1 (n : nat) : CV_radius (Bessel1_seq n) = p_infty.