Li Chunfeng
Li Chunfeng ( Chinese 李淳风 , Pinyin Lǐ Chúnfēng ; * 602 in Baoji , † 670 in Chang'an ) was a Chinese mathematician, astronomer and historian.
Li Chunfeng was the son of a Taoist learned civil servant. He was appointed court astronomer and historian to the Imperial Office for Astronomy in 627 , becoming its deputy director in 641 and director in 648. There he was responsible for a calendar reform (Linde calendar), which was carried out in 665 (with months of 29 and 30 days and a leap month every three years). The calendar was in use until 728. He also improved the instruments in the Imperial Observatory.
He is best known as the editor (by order of the Emperor Tang Gaozu ) of the Ten Mathematical Classics ( Suanjing shi shu ), which he also commented on and corrected from errors.
As a historian, he was involved in the official history of the Sui Dynasty and Jin Dynasty . He wrote a book on Taoist practices ("Commentary and Introduction to the Gold Curl and the Flowing Pearls") and on astrology ( 乙巳 占 , Yisizhan , 645). A book on prophecy with number games ( numerology ) is also attributed to him.
Web links
- John J. O'Connor, Edmund F. Robertson : Li Chunfeng. In: MacTutor History of Mathematics archive .
| personal data | |
|---|---|
| SURNAME | Li, Chunfeng |
| BRIEF DESCRIPTION | Chinese mathematician |
| DATE OF BIRTH | 602 |
| PLACE OF BIRTH | Baoji |
| DATE OF DEATH | 670 |
| Place of death | Chang'an |