module Gsl_root:One dimensional Root-Findingsig
..end
module Bracket:sig
..end
module Polish:sig
..end
val test_interval : lo:float -> up:float -> epsabs:float -> epsrel:float -> bool
val test_delta : x1:float -> x0:float -> epsabs:float -> epsrel:float -> bool
val test_residual : f:float -> epsabs:float -> bool