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ERIC Number: EJ1110306
Record Type: Journal
Publication Date: 2016
Pages: 12
Abstractor: As Provided
ISSN: EISSN-2065-1430
The Winning Number: An Heuristic Approach with the Geogebra's Help
Alves, Francisco Regis Vieira
Acta Didactica Napocensia, v9 n2 p1-12 2016
Admittedly, the study of Complex Analysis (CA) requires of the student considerable mental effort characterized by the mobilization of a related thought to the complex mathematical concepts. Thus, with the aid of the dynamic system Geogebra, we discuss in this paper a particular concept in CA. In fact, the notion of winding number v[f(gamma),P] = n has a profound topological and geometrical meaning. Moreover, we record the effort of some authors in order to emphasize its intuitive description (Needham, 2000). We will show some basics commands that allow too the exploration of geometric and topological ideas related to the Rouché's theorem and the Fundamental Theorem of Algebra (TFA) (Alves, 2014).
Babes-Bolyai University. Kogainiceanu 1, Cluj-Napoca, 400084 Romania. e-mail:; Web site:
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A