Бейсебай, П. and Мұхамедиев, Ғ. 2022. ON A METHOD FOR INTRODUCING THE CONCEPTS OF A NUMERICAL SERIES AND ITS CONVERGENCE. Bulletin of Abai KazNPU. Series of Physical and mathematical sciences. 80, 4 (Dec. 2022), 80–88. DOI:https://doi.org/10.51889/2511.2022.57.40.009.