Bibliografia principal:
• Range, M. (2018) Using high school algebra for a natural approach to derivatives and continuity, The Mathematical Gazette 102, no. 555, pp. 435-446.
• Sultan, A. e Artzt, A.L. (2011). The Mathematics that every secondary school math teacher needs to know, New York, 2011 (primeira edição).
• Rebocho, M.N. (2022). Divided-difference operators from the geometric point of view. Formal and Analytic Solutions of Differential Equations, pp. 301 - 324, Singapore, World Scientific. DOI: 10.1142/9781800611368_0015