NUMERICAL SOLUTION OF FIRST AND SECOND ORDER DIFFERENTIAL EQUATIONS USING THE TAU METHOD WITH AN ESTIMATION OF THE ERROR . FUDMA JOURNAL OF SCIENCES, [S. l.], v. 9, n. 3, p. 119–121, 2025. DOI: 10.33003/fjs-2025-0903-3346. Disponível em: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/3346. Acesso em: 5 sep. 2025.