AugustinLouis Cauchy facts for kids
AugustinLouis Cauchy  

Cauchy around 1840. Lithography by Zéphirin Belliard after a painting by Jean Roller.


Born  Paris, France 
21 August 1789
Died  23 May 1857 Sceaux, France 
(aged 67)
Nationality  French 
Fields  Mathematics, Physics 
Institutions  École Centrale du Panthéon École Nationale des Ponts et Chaussées École Polytechnique 
Alma mater  École Nationale des Ponts et Chaussées 
Doctoral students  Francesco Faà di Bruno Viktor Bunyakovsky 
Known for  See list 
Notable awards  Grand Prize of L'Académie Royale des Sciences 
AugustinLouis Cauchy (21 August 1789 – 23 May 1857) was a French mathematician and physicist who made many important contributions to mathematical analysis and mathematical physics. (including elasticity) Importantly, he created complex analysis, which studies complex functions and their properties.
Cauchy did not like mathematicians making assumptions, and he particularly did not like the way that earlier mathematicians, such as Euler and Lagrange, assumed that properties of finite expansions, meaning that we can count the number of terms, also worked for infinite series. Cauchy was able to give examples of where this did not work, and called the assumptions that the earlier mathematicians made, the generality of algebra.
More theorems have been named after Cauchy than any other mathematician in history.