CHIANG MAI JOURNAL OF SCIENCE, cilt.39, sa.4, ss.688-692, 2012 (SCI-Expanded)
The purpose of this paper is to introduce that Noor (three-step) iteration converges strongly to fixed point in the class of quasi-contractive operators satisfying Zamfirescu's conditions and to show that the Picard iteration converges faster than the Noor iteration.