Module Newton

module Newton: sig .. end

Newton's method.

val iter : float -> (float -> float) -> float -> float

iter dx f x0 is the Newton iterate obtained by applying one time Newton's method to f and x0, using the infinitesimal dx.

It assumes the function f is defined for every real number.

val phi_iter : float -> float

phi_iter x0 is the Newton iterate following x0 and converging the golden ratio phi.