Alternative proofs of Shafer's inequality for inverse hyperbolic tangent
General Mathematics
2024-04-08 v2
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.
Cite
@article{arxiv.2103.14037,
title = {Alternative proofs of Shafer's inequality for inverse hyperbolic tangent},
author = {Yogesh J. Bagul and Ramkrishna M. Dhaigude},
journal= {arXiv preprint arXiv:2103.14037},
year = {2024}
}