FACTA UNIVERSITATIS SERIES MATHEMATICS AND INFORMATICS, Vol. 25, No. 1 (2010) Contents

X. F. Zhu, Y. L. Zhou, and W. T. Xiong Characterizations of right ring congruences on a semiring

C. Mortici A direct proof of the connection of two convergence tests

N. I. Đuranović-Miličić and M. Gardašević-Filipović A multi-step curve search algorithm in nonlinear optimization

M. B. Tasić and I. P. Stanimirović Implementation of the partitioning method

S. H. Pepić Weighted Moore-Penrose inverse: PHP vs. MATHEMATICA

P.S. Stanimirović and M. Ćirić Discrete location problem on arbitrary surface in R3