@article{202003.0261,
	doi = {10.20944/preprints202003.0261.v1},
	url = {https://doi.org/10.20944/preprints202003.0261.v1},
	year = 2020,
	month = {March},
	publisher = {Preprints},
	author = {Feng Qi},
	title = {On Bounds of the Sine and Cosine along a Circle on the Complex Plane},
	journal = {Preprints}
}