Chinese officials of the Song Dynasty
This entry is missing Overview , add relevant content to make the entry more complete, and it can also be upgraded quickly. Hurry up edit Come on! Chu Yan [1] , from Xicheng (now Yanjin County), Kaifeng. Don't use four tone letters, Li Ren Liu Yao The teacher is responsible for his work. Derived from Jiuzhang, Jigu, Zhuozhu, and Haidao, the calculation scriptures are particularly wonderful. The Ming phase method and the Yusi Sutra are good at pushing the steps, Yin and Yang, and the number of stars. Since Chen tried the "Xuanming Calendar", he has supplemented the students of Tianjian, and moved to Baozhang.
- True name
- Chu Yan
- one's native heath
- Kaifeng 阼 City
- Main works
- Si Chenxing Leaking Calendar
- Key achievements
- New calendar
At the beginning of the Heavenly Sage, a new calendar was created. Many people deduced the calendar and gave it to Lingtailang and the calendar officer Song Xinggu Wait for nine people to make the calendar. He joined Sitian to supervise the officials, and he joined the Imperial Academy for astronomy. Huang Youzhong co produced the twelve volumes of the Calendar of Sichen Star Leakage. Over time, and Zhou Cong The same manager as Gousi Tianjian. Death is childless, and women are good at arithmetic. 
