2025-04-04https://repository.covenantuniversity.edu.ng/handle/123456789/42988Over the years, scientific computing has contributed immensely to computational mathematics. Mathematica computer programming codes is known to provide easy computation and quick results. This research article is specifically built to generate Mathematica computer programming codes of exponentially fitted concurrent Milne’s device (EFCMD) for solving special problems. Exponentially fitted concurrent Miln device is formulated via collocation/interpolation with power series as the approximate solution. Analyzing the EFCMD will produce the main local truncation error (MLTE) after showing the order, thereby bringing forth the bounds of convergence. Numerical results display that EFCMD do better than existing methods in terms of the maximum errors in the least studied bound of convergence as a result of varying/designing a suitable pace size, ascertain bound of convergence and error control.application/pdfQA Mathematics, TH Building constructionArticle