New Refinements and Improvements of Jordan’s Inequality

The polynomial bounds of Jordan’s inequality, especially the cubic and quartic polynomial bounds, have been studied and improved in a lot of the literature; however, the linear and quadratic polynomial bounds can not be improved very much. In this paper, new refinements and improvements of Jordan’s...

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Bibliographic Details
Main Authors: Lina Zhang, Xuesi Ma
Format: Article
Language:English
Published: MDPI AG 2018-11-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/6/12/284