Augustin-Louis Cauchy

lived from 1789 to 1857

Augustin-Louis Cauchy pioneered the study of analysis, both real and complex, and the theory of permutation groups. He also researched in convergence and divergence of infinite series, differential equations, determinants, probability and mathematical physics.

Find out more at:
http://www-history.mcs.st-andrews.ac.uk/Mathematicians/Cauchy.html