Zhou Bi Suan Jing
Historical Records
The History of the Three Kingdoms by Chen Shou
The Book of Master Guigu |
Zhou Bi Suan Jing (Arithmetical Classic of the Gnomon and the Circular Paths) was a mathematic and astronomic work composed in Western Han Dynasty. The book demonstrated the Theory of Canopy-Heavens in astronomy, making it systemized and mathematical. Giving illustrations on the Sifen (quarter remainder) calendar, it also applied complex fraction operations, extraction of square root and linear interpolation in mathematics, while raising the issues of arithmetic progressions and linear indeterminate equation. It is the earliest work that quotes the Pythagorean theorem among all documents in China. |








