ASHLEY, Asa; ATICI, Ferhan M.; CHANG, Samuel. A note on constructing sine and cosine functions in discrete fractional calculus. CUBO, A Mathematical Journal, [S. l.], v. 27, n. 3, p. 581–594, 2025. DOI: 10.56754/0719-0646.2703.581. Disponível em: https://cubo.ufro.cl/index.php/cubo/article/view/4165. Acesso em: 19 mar. 2026.