sig
type t
val make : int -> Cheb.t
external order : Cheb.t -> int = "ml_gsl_cheb_order"
external coefs : Cheb.t -> float array = "ml_gsl_cheb_coefs"
external init : Cheb.t -> Fun.gsl_fun -> a:float -> b:float -> unit
= "ml_gsl_cheb_init"
val eval : Cheb.t -> ?order:int -> float -> float
val eval_err : Cheb.t -> ?order:int -> float -> Fun.result
val deriv : Cheb.t -> Cheb.t
val integ : Cheb.t -> Cheb.t
end