Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

On Bounds of the Sine and Cosine Along Straight Lines on the Complex Plane

Version 1 : Received: 19 September 2018 / Approved: 19 September 2018 / Online: 19 September 2018 (06:24:07 CEST)

A peer-reviewed article of this Preprint also exists.

Feng Qi, On bounds of the sine and cosine along straight lines on the complex plane, Acta Universitatis Sapientiae Mathematica 11 (2019), no. 2, 371--379; available online at https://doi.org/10.2478/ausm-2019-0027. Feng Qi, On bounds of the sine and cosine along straight lines on the complex plane, Acta Universitatis Sapientiae Mathematica 11 (2019), no. 2, 371--379; available online at https://doi.org/10.2478/ausm-2019-0027.

Journal reference: Acta Universitatis Sapientiae, Mathematica 2019, 11, 371-379
DOI: 10.2478/ausm-2019-0027

Abstract

In the paper, the author discusses and computes bounds of the sine and cosine along straight lines on the complex plane.

Subject Areas

bound; sine; cosine; horizontal straight line; vertical straight line; complex plane; slope

Comments (2)

Comment 1
Received: 21 March 2019
Commenter: Feng Qi
Commenter's Conflict of Interests: I am the author
Comment: An extended version of this preprint has been accepted on 14 March 2019 for publication in the Acta Universitatis Sapientiae Mathematica.
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Comment 2
Received: 23 February 2020
Commenter: Feng Qi (Click to see Publons profile: )
Commenter's Conflict of Interests: I and the author of this paper
Comment: This preprint has been formally published as

Feng Qi, On bounds of the sine and cosine along straight lines on the complex plane, Acta Universitatis Sapientiae Mathematica 11 (2019), no. 2, 371--379; available online at https://doi.org/10.2478/ausm-2019-0027.
+ Respond to this comment

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