Khalid K. Ali MSc in pure Mathematics, Mathematics Department 2015 from Faculty of Science, Al Azhar University, Cairo, Egypt. Ph.D. in pure Mathematics, Mathematics Department entitled 2018 from Faculty of Science, Al-Azhar University, Cairo, Egypt. He has authored/co-authored over 110 scientific paper in top-ranked International Journals and Conference Proceedings. His research interests include Numerical Analysis, Finite Difference Methods, Finite Element Methods, Computational Mathematics, Partial differential equations, Integral equations, and Integrodifferential equation.