Farshid Khojasteh received the Ph.D. degree in Science and Research Branch of Islamic Azad University of Tehran (2011) and has been teaching in both undergraduate and graduate levels in the department of mathematics in Islamic Azad University for 12 years. He is now an associate professor of young researcher and elite club center of Islamic Azad University of Arak, Iran. He has authored and coauthored more than 35 journal and conference papers. He has served on many committees of conferences and editors of journals. For example, the executive editors of Theory of Approximation and Application and Advances in Mathematical Finance and Applications, and an editor of RFPTA. Moreover, he has been capable of receiving the best mathematics scholar award among Islamic Azad Universities of Iran, between 2013 and 2014.