Talk:Tian yuan shu

This article is rated Stub-class on Wikipedia's content assessment scale.
It is of interest to the following WikiProjects:

Mathematics Low‑priority

	Mathematics portal This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MathematicsWikipedia:WikiProject MathematicsTemplate:WikiProject Mathematicsmathematics articles
Low	This article has been rated as Low-priority on the project's priority scale.

	China portal This article is within the scope of WikiProject China, a collaborative effort to improve the coverage of China related articles on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ChinaWikipedia:WikiProject ChinaTemplate:WikiProject ChinaChina-related articles
???	This article has not yet received a rating on the project's importance scale.
	This article has been automatically rated by a bot or other tool because one or more other projects use this class. Please ensure the assessment is correct before removing the `\|auto=` parameter.

Sources to add

Japanese encyclopedias:

Google Books:

Other: