New Refinements and Improvements of Some Trigonometric Inequalities Based on Padé Approximant

A multiple-point Padé approximant method is presented for approximating and bounding some trigonometric functions in this paper. We give new refinements and improvements of some trigonometric inequalities including Jordan’s inequality, Kober’s inequality, and Becker-Stark’s inequality. The analysis...

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Main Authors: Lina Zhang, Xuesi Ma
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Journal of Mathematics
Online Access:http://dx.doi.org/10.1155/2020/2753691
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author Lina Zhang
Xuesi Ma
author_facet Lina Zhang
Xuesi Ma
author_sort Lina Zhang
collection DOAJ
description A multiple-point Padé approximant method is presented for approximating and bounding some trigonometric functions in this paper. We give new refinements and improvements of some trigonometric inequalities including Jordan’s inequality, Kober’s inequality, and Becker-Stark’s inequality. The analysis results show that our conclusions are better than the previous conclusions.
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institution Kabale University
issn 2314-4629
2314-4785
language English
publishDate 2020-01-01
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series Journal of Mathematics
spelling doaj-art-a80cacb520184b988a9fe212c73525b62025-02-03T01:24:57ZengWileyJournal of Mathematics2314-46292314-47852020-01-01202010.1155/2020/27536912753691New Refinements and Improvements of Some Trigonometric Inequalities Based on Padé ApproximantLina Zhang0Xuesi Ma1School of Computer Science and Technology, Henan Polytechnic University, Jiaozuo, Henan 454000, ChinaSchool of Mathematics and Information Science, Henan Polytechnic University, Jiaozuo, Henan 454000, ChinaA multiple-point Padé approximant method is presented for approximating and bounding some trigonometric functions in this paper. We give new refinements and improvements of some trigonometric inequalities including Jordan’s inequality, Kober’s inequality, and Becker-Stark’s inequality. The analysis results show that our conclusions are better than the previous conclusions.http://dx.doi.org/10.1155/2020/2753691
spellingShingle Lina Zhang
Xuesi Ma
New Refinements and Improvements of Some Trigonometric Inequalities Based on Padé Approximant
Journal of Mathematics
title New Refinements and Improvements of Some Trigonometric Inequalities Based on Padé Approximant
title_full New Refinements and Improvements of Some Trigonometric Inequalities Based on Padé Approximant
title_fullStr New Refinements and Improvements of Some Trigonometric Inequalities Based on Padé Approximant
title_full_unstemmed New Refinements and Improvements of Some Trigonometric Inequalities Based on Padé Approximant
title_short New Refinements and Improvements of Some Trigonometric Inequalities Based on Padé Approximant
title_sort new refinements and improvements of some trigonometric inequalities based on pade approximant
url http://dx.doi.org/10.1155/2020/2753691
work_keys_str_mv AT linazhang newrefinementsandimprovementsofsometrigonometricinequalitiesbasedonpadeapproximant
AT xuesima newrefinementsandimprovementsofsometrigonometricinequalitiesbasedonpadeapproximant