New modification of Maheshwari’s method with optimal eighth order convergence for solving nonlinear equations

Abstract

Abstract In this paper, we present a family of three-point with eight-order convergence methods for finding the simple roots of nonlinear equations by suitable approximations and weight function based on Maheshwari’s method. Per iteration this method requires three evaluations of the function and one evaluation of its first derivative. These class of methods have the efficiency index equal to 8 1 4 ≈ 1.682 ${8^{{\textstyle{1 \over 4}}}} \approx 1.682$ . We describe the analysis of the proposed methods along with numerical experiments including comparison with the existing methods. Moreover, the attraction basins of the proposed methods are shown with some comparisons to the other existing methods.