From Powers to Exponential Function

The construction of the exponential function of a real exponent from the definition of the powers of a real number, and its properties, requires the notion of successions, a decimal approximation of a rational number, convergence, and limit of a function. In Argentina, this construction would exceed...

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Bibliographic Details
Authors: Sureda Figueroa, Diana Patricia, Otero, Maria Rita
Format: article
Status:Published version
Publication Date:2019
Country:Argentina
Institution:Consejo Nacional de Investigaciones Científicas y Técnicas
Repository:CONICET Digital (CONICET)
Language:English
OAI Identifier:oai:ri.conicet.gov.ar:11336/125583
Online Access:http://hdl.handle.net/11336/125583
Access Level:Open access
Keyword:TEACHER TRAINING
EMPOWERMENT
EXPONENTIAL FUNCTION
https://purl.org/becyt/ford/5.3
https://purl.org/becyt/ford/5
Description
Summary:The construction of the exponential function of a real exponent from the definition of the powers of a real number, and its properties, requires the notion of successions, a decimal approximation of a rational number, convergence, and limit of a function. In Argentina, this construction would exceed what could be taught at the secondary level, but it provides advanced students of teachers in mathematics, and teachers in practice, the possibility of discussing what happens in the case of irrational exponents of the type aπ, or discuss the validity of the properties of this type of power.