2Department of Mathematics, Adiyaman University, ADIYAMAN
3Yildiz Technical University, Department of Mathematical Engineering, ISTANBUL
In this paper, we first give a necessary and sufficient condition for convergence of Picard-S iteration process to a fixed point of continuous functions on an arbitrary interval and prove equivalence of Picard-S and P iterative processes. We also compare the rate of convergence between Picard-S and some others iteration processes in the literature. Finally, some numerical examples for comparing the rate of convergence of those methods are also given.