1. Department of Mathematics, Faculty of Science, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan
2. Al-Huson University College, Al-Balqa Applied University, P.O. Box 50, Al-Huson, 21510, Irbid, Jordon
3. Directorate of Education of the District of Qasbah Irbid-Irbid Governorate, Tabareyah Secondary School For Girls, The Ministry of Education, Jordan
4. Department of Mathematics, Faculty of science, Zarqa university, Zarqa, Jordan
5. Department of Computer Science and Information Technology, Al-Balqa Applied University, P. O. Box 50, Al-Huson, 21510, Irbid, Jordon