@article{202305.1614,
	doi = {10.20944/preprints202305.1614.v1},
	url = {https://doi.org/10.20944/preprints202305.1614.v1},
	year = 2023,
	month = {May},
	publisher = {Preprints},
	author = {Sunfu Tan and Yifei Pu},
	title = {Intriguing Self-optimization: Gradient Sign and Fractional Order Gradient},
	journal = {Preprints}
}