Functional Equations Characterizing the Tangent Function Over a Convex Polygon II

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Charinthip Hengkrawit
Kanet Ponpetch

Abstract

Abstract

The functional equation , satisfied by the three angles  and  of a non-degenerate triangle, was  shown  to characterize the tangent function by Benz in 2004.  This result has been generalized by the authors to a functional equation, with  parameters representing the angles of a non-degenerate convex -gon. Here, it is shown that there are other different but similar functional equations characterizing the tangent function. 

Keywords: functional equation; tangent function; convex polygon

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How to Cite
Hengkrawit, C., & Ponpetch, K. (2016). Functional Equations Characterizing the Tangent Function Over a Convex Polygon II. Thai Journal of Science and Technology, 5(2), 113–118. https://doi.org/10.14456/tjst.2016.11
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วิทยาศาสตร์กายภาพ