Preprint Short Note Version 1 Preserved in Portico This version is not peer-reviewed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

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 (doi: 10.20944/preprints202003.0261.v1). Qi, F. On Bounds of the Sine and Cosine along a Circle on the Complex Plane. Preprints 2020, 2020030261 (doi: 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.

Subject Areas

bound; double inequality; norm; sine function; cosine function; circle; complex plane

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