DUA METODE OPTIMAL BERORDE EMPAT UNTUK MENENTUKAN AKAR GANDA PERSAMAAN NONLINEAR

Abstract

This article discusses two optimal methods namely Liu-Zhou's method and Zhou- Chen-Song's method in nding multiple roots of nonlinear equations. Analytically using Taylor's expansion, geometric series and binomial series, it is shown that Liu-Zhou's method and Zhou-Chen-Song's method have four order of convergence. Some examples are given to see the comparison of Liu-Zhou's method and Zhou- Chen-Song's method with other known method