Four Famous Formulas are Equivalent. Scientia Series A: Mathematical Sciences, [S. l.], v. 35, n. 1, p. 37–48, 2024. DOI: 10.83018/0jwew598. Disponível em: https://revistas.usm.cl/scientia/article/view/VOL35_2024_3.. Acesso em: 26 apr. 2025.