K. AL- Saidy, S. and Esa Abdul Naby, Z. (2017) “Approximation of Functions by Means of the Modulus”, Journal of Al-Qadisiyah for Computer Science and Mathematics, 3(2), pp. 156–165. Available at: https://jqcsm.qu.edu.iq/index.php/journalcm/article/view/285 (Accessed: 19 September 2024).