Review of some iterative root-finding methods from adynamical point of view

Abstract

From a dynamical point of view applied to complex polynomials, we study a number of root finding iterative methods. We consider Newton's method, Newton's method for multiple roots, Jarratt's method, the super Halley method, the convex as well as the double convex acceleration of Whittaker's method, the methods of Chebyshev, Stirling, and Ste®ensen, among others. Since all of the iterative root¯finding methods we study satisfy the Scaling Theorem, except for Stirling's method and that of Steffensen, we obtain their conjugacy classes.