THE SEMILOCAL CONVERGENCE OF THE CONVEX ACCELERATION OF WHITTAKER'S METHOD

  • RALUCA ANAMARIA (POMIAN) SĂLĂJAN

Abstract

In this article we study the convex acceleration of Whittaker's iterative method for approximating the roots of a real function of real argument, that is two times di erentiable and has a nonvanishing fi rst order derivative. We prove a semilocal convergence theorem for this method and we give a numerical example which illustrates this theorem.

Cuvinte cheie

convex acceleration of Whittaker's method one-point iteration method fi xed point second order convergence