Sharper bounds and new proofs of the exponential function with cotangent

This paper provides a Páde interpolation based method for finding improved bounds for the exponential function with cotangent. In principle, it can recover many results in prevailing methods. A new method for proving the corresponding bounds is also proposed, which can also be applied for proving mo...

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Bibliographic Details
Main Authors: Xiangyang Wu, Kang Yang, Nichang Jiang, Xiao-Diao Chen
Format: Article
Language:English
Published: AIMS Press 2020-09-01
Series:AIMS Mathematics
Subjects:
Online Access:https://www.aimspress.com/article/10.3934/math.2020450/fulltext.html