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Pythagoras
versión On-line ISSN 2223-7895
versión impresa ISSN 1012-2346
Resumen
ARNAL-PALACIAN, Mónica; CLAROS-MELLADO, Francisco J. y SANCHEZ-COMPANA, María T.. Comparing the finite and infinite limits of sequences and functions: A mathematical and phenomenological analysis and its implications in Spanish textbooks. Pythagoras [online]. 2024, vol.45, n.1, pp.1-8. ISSN 2223-7895. http://dx.doi.org/10.4102/pythagoras.v45i1.774.
The purpose of this article is to conduct a mathematical and phenomenological comparison of three concepts: (1) the finite limit of a function at a point, (2) the finite limit of a sequence, and (3) the infinite limit of a sequence. Additionally, we aim to analyse the presence of these concepts in Spanish textbooks. The methodology employed is exploratory and descriptive. Our mathematical comparison revealed differences in several areas, including the dependence between variables, the involved infinite processes, the types of infinity, the dimensioning for each variable, and the intuition of continuity in the interval. Our phenomenological comparison found a correspondence between phenomena using a formal approach, but differences in phenomena when using an intuitive approach. Finally, our analysis of textbooks revealed that all three limits are most commonly presented in the verbal representation system and definition format. CONTRIBUTION: This study has contributed to the teaching and learning of the notion of limit
Palabras clave : Finite limit; infinite limit; sequence; function; mathematics comparison; phenomenology; textbooks; intuitive approach.