# Zhao Youqin

> Yuan dynasty astronomer-mathematician

**Wikidata**: [Q17040371](https://www.wikidata.org/wiki/Q17040371)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Zhao_Youqin)  
**Source**: https://4ort.xyz/entity/zhao-youqin


## References

1. MacTutor History of Mathematics archive
2. China Biographical Database
3. [Source](https://www.sciencedirect.com/science/article/pii/S0315086097921637)
4. [Source](http://viaf.org/viaf/data/viaf-20170101-links.txt.gz)
5. Encyclopædia Britannica Online
6. Hong Kong Chinese Authority Name