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Chinese mathematician best known for discussing Pascal's Triangle about $500$ years before Blaise Pascal.
- Born: c. 1010 in Kaifeng, China
- Died: c. 1070 in China
Theorems and Definitions
- c. 1050: Huangdi Jiuzhang Suanjing Xicao ("The Yellow Emperor's detailed solutions to the Nine Chapters on the Mathematical Art")
- Suanfa Xuegu Ji (A collection of ancient mathematical rules)
Both are now lost, but the first is referred to extensively in Yang Hui's Xiangjie Jiuzhang Suanfa of $1261$.
Also known as
- Simplified Chinese: 贾宪
- Traditional Chinese: 賈憲
- Pinyin: Jiǎ Xiàn
- Wade–Giles: Chia Hsien