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arXiv · 2103.14037

Alternative proofs of Shafer's inequality for inverse hyperbolic tangent

Yogesh J. Bagul·Ramkrishna M. Dhaigude
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Abstract

We point out that a concise proof of Theorem 2 in the article, 'On a quadratic estimate of Shafer' by L. Zhu contains a small mistake. Correcting this mistake and giving alternative proofs of Theorem 2 is the main aim of this note.

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Yogesh J. Bagul, Ramkrishna M. Dhaigude. 2021-03-25. Alternative proofs of Shafer's inequality for inverse hyperbolic tangent. https://doi.org/10.7153/jmi-2022-16-61

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