1, Fang Zhongtong

Fang Zhongtong (1634 ~ 1698), whose word position is Bo, accompanied by Weng. Tongcheng, Anhui, the second son of Fang Yizhi, a philosopher in Ming Dynasty.

Works: Yan Several Degrees, including all mathematics except triangles at that time.

2. Mei Wending

Mei Wending (1633— 172 1) was born in Xuanzhou. He was "the first master of calendar calculation" and "the ancestor of mountains" in Qing Dynasty.

Works: Equation theory, Pythagoras' example, written calculation, preparatory calculation, and explanation of calculation.

3. Xirao Nian

Xirao Nian (1671-1739), whose real name is Yungong, is Nian Gengyao's younger brother Yao Xi.

Works: sightseeing, measuring fesr, brief introduction of face and figure proportion, logarithmic rhyme.

4.minggatu

Minggatu (1692— 1765) was named Jing 'an. Mongolia Zhengbai Banner. Achievements are mainly in astronomy.

Works: "Secant circle density rate agility method", first proposed Catalan series.

5. Li

Li (1811-1882) was born as Qiu Xian and nicknamed Ren Shu. Haining, Zhejiang. He put forward the famous sharp cone technique, and was the first person to prove Kepler's equation with infinite series in the history of China. The famous identity he put forward in the superposition method is also named: Lie formula.

Works: Fiona Fang's explanation, arrows reveal secrets, logarithmic exploration, methods of checking several roots, four-element solution, Linde's technical solution.