**Augustin-Louis Cauchy
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Cauchy was born in Paris and educated as an engineer
at the École Polytechnique. After serving for a short time as an
engineer, he became interested in mathematics and, with encouragement from
Laplace and Lagrange, changed fields. He made important contributions
to algebras, number theory, and analysis; he is responsible for the
fundamental theorems in complex variables. Cauchy saw the need for more
rigor in analysis and developed tests for the convergence of infinite
series and published an exposition of calculus based on limits; he was
not completely successful, since he did not have the constructions of
irrational numbers later given by Cantor, Dedekind, and Weierstrass.
He was a man of strong opinions, including those concerning the calculus,
and received the wrath of students and administrators alike for teaching
a limit based calculus course at the École Polytechnique. Except for
Euler, Cauchy was the most prolific mathematician of all time, and the
still in effect four page limit for papers in Compte Rendus was
instituted to deal with his output. He was, however, a difficult man
who held extremely conservative (bigoted) religious and politic views; he
also has
the distinction of losing important papers of both Abel and Galois while
serving as a referee.
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**Augustin-Louis Cauchy (1789-1857) **

France (1989), No. 2176

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