Finest bounds for the Sinc hyperbolic function and applications

HAL (Le Centre pour la Communication Scientifique Directe) 2026 Preprint Open access

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Authors: A. Raouf Chouikha
Cited by: 0

Abstract

In this paper we prove for x ∈ (0, ∞) the double inequality for the Sinc hyperbolic function , with equality when r → 0. Similar double inequalities are provided for the Huygens and The Wilker functions as well as for the Lazarewic function.

Fields of Study & Subjects

Mathematical Inequalities and Applications Mathematical functions and polynomials Advanced Mathematical Identities

Publication details

Journal / source
HAL (Le Centre pour la Communication Scientifique Directe)
Publication date
14 January 2026
Language
EN
Document type
Preprint