SOME DERIVATIVE FREE ITERATIVE METHODS FOR SOLVING NONLINEAR EQUATIONS
Journal: Academic Research International (Vol.2, No. 1)Publication Date: 2012-01-15
Authors : Nusrat Yasmin Moin-ud-din Junjua;
Page : 74-82
Keywords : nonlinear equations; iterative methods; Newton's method; Central approximation; Derivative free method.;
Abstract
In this paper we present two new derivative free iterative methods for finding the zeros of the nonlinear equation f(x) = 0. Finding the zeros of the nonlinear equations is a classical problem in numerical analysis arises frequently in various branches of science and engineering. The aim of this paper is to develop some efficient methods to find the approximation of the root ω of the nonlinear equation f(x) = 0, without the evaluation of the derivatives. The new methods based on the centraldifference and forward-difference approximations to derivatives. It is proved that one of the methods has cubic convergence and other method has fourth-order convergence. The benefit of these methods is that these methods do not need to calculate any derivative. Several examples illustrate that the convergence and efficiency of the new methods are better than previous methods
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