1. Institute of Computing Science and Technology, Guangzhou University, Guangzhou 510006, China
2. School of Computer Science of Information Technology, Qiannan Normal University for Nationalities, Duyun, Guizhou 558000, China
3. Department of Mathematics and Science Education, Istanbul Sabahattin Zaim University, Istanbul, Turkey
4. Department of Mathematics, Yildiz Technical University, Istanbul, Turkey
5. Department of Mathematical Engineering, Yildiz Technical University, Istanbul, Turkey
6. Department of Mathematical Engineering, Polytechnic University of Tirana, Tirana, Albania