Short Note
Version 1
Preserved in Portico This version is not peer-reviewed
On Bounds of the Sine and Cosine along a Circle on the Complex Plane
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Version 1
: Received: 15 March 2020 / Approved: 16 March 2020 / Online: 16 March 2020 (09:51:10 CET)
How to cite: Qi, F. On Bounds of the Sine and Cosine along a Circle on the Complex Plane. Preprints 2020, 2020030261. https://doi.org/10.20944/preprints202003.0261.v1 Qi, F. On Bounds of the Sine and Cosine along a Circle on the Complex Plane. Preprints 2020, 2020030261. https://doi.org/10.20944/preprints202003.0261.v1
Abstract
In the paper, the author finds bounds of the sine and cosine along a circle on the complex plane in terms of two double inequalities for the norms of the sine and cosine along a circle on the complex plane.
Keywords
bound; double inequality; norm; sine function; cosine function; circle; complex plane
Subject
Computer Science and Mathematics, Geometry and Topology
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Commenter's Conflict of Interests: I am the author of this paper
Feng Qi, \textit{On bounds for norms of sine and cosine along a circle on the complex plane}, Kragujevac Journal of Mathematics \textbf{48} (2024), no.~2, 255\nobreakdash--266; available online at \url{https://doi.org/10.46793/KgJMat2402.255Q}.
https://imi.pmf.kg.ac.rs/kjm/pdf/accepted-finished/dd339542437be5d3ed45d673d4fbcf3a_2536_05122021_011230/kjm_48_2-6.pdf