On bounds of the sine and cosine along straight lines on the complex plane
| 27 feb 2020
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Publicado en línea: 27 feb 2020
Páginas: 371 - 379
Recibido: 04 nov 2018
DOI: https://doi.org/10.2478/ausm-2019-0027
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© 2019 Feng Qi, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Feng Qi
College of Mathematics
Inner Mongolia University for Nationalities,
School of Mathematical Sciences
Tianjin Polytechnic University,
Institute of Mathematics,
Henan Polytechnic University