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New bounds for the exponential function with cotangent

In this paper, new bounds for the exponential function with cotangent are found by using the recurrence relation between coefficients in the expansion of power series of the function [Formula: see text] and a new criterion for the monotonicity of the quotient of two power series.

Detalles Bibliográficos
Autor principal: Zhu, Ling
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5940775/
https://www.ncbi.nlm.nih.gov/pubmed/29769788
http://dx.doi.org/10.1186/s13660-018-1697-8
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author Zhu, Ling
author_facet Zhu, Ling
author_sort Zhu, Ling
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description In this paper, new bounds for the exponential function with cotangent are found by using the recurrence relation between coefficients in the expansion of power series of the function [Formula: see text] and a new criterion for the monotonicity of the quotient of two power series.
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spelling pubmed-59407752018-05-14 New bounds for the exponential function with cotangent Zhu, Ling J Inequal Appl Research In this paper, new bounds for the exponential function with cotangent are found by using the recurrence relation between coefficients in the expansion of power series of the function [Formula: see text] and a new criterion for the monotonicity of the quotient of two power series. Springer International Publishing 2018-05-08 2018 /pmc/articles/PMC5940775/ /pubmed/29769788 http://dx.doi.org/10.1186/s13660-018-1697-8 Text en © The Author(s) 2018 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Research
Zhu, Ling
New bounds for the exponential function with cotangent
title New bounds for the exponential function with cotangent
title_full New bounds for the exponential function with cotangent
title_fullStr New bounds for the exponential function with cotangent
title_full_unstemmed New bounds for the exponential function with cotangent
title_short New bounds for the exponential function with cotangent
title_sort new bounds for the exponential function with cotangent
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5940775/
https://www.ncbi.nlm.nih.gov/pubmed/29769788
http://dx.doi.org/10.1186/s13660-018-1697-8
work_keys_str_mv AT zhuling newboundsfortheexponentialfunctionwithcotangent