Theoretical Analyses on Discrete Formulae of Directional Differentials in the Finite Point Method. Journal of Computational Mathematics, [S. l.], v. 40, n. 1, p. 1–25, 2021. DOI: 10.4208/jcm.2005-m2019-0304. Disponível em: https://global-sci.com/index.php/JCM/article/view/12482. Acesso em: 6 dec. 2025.