In 1805, he placed second of 293 applicants on this exam and was admitted. In spite of these successes, Augustin-Louis chose an engineering career, and prepared himself for the entrance examination to the École Polytechnique. Most of the curriculum consisted of classical languages the young and ambitious Cauchy, being a brilliant student, won many prizes in Latin and the humanities. On Lagrange's advice, Augustin-Louis was enrolled in the École Centrale du Panthéon, the best secondary school of Paris at that time, in the fall of 1802. The famous mathematician Lagrange was also a friend of the Cauchy family. When Napoleon Bonaparte came to power (1799), Louis-François Cauchy was further promoted, and became Secretary-General of the Senate, working directly under Laplace (who is now better known for his work on mathematical physics). There Louis-François Cauchy found himself a new bureaucratic job in 1800, and quickly moved up the ranks. After the execution of Robespierre (1794), it was safe for the family to return to Paris. ![]() The Cauchy family survived the revolution and the following Reign of Terror (1793–94) by escaping to Arcueil, where Cauchy received his first education, from his father. They had two daughters, Marie Françoise Alicia (1819) and Marie Mathilde (1823).Ĭauchy's father was a highly ranked official in the Parisian Police of theĪncien Régime, but lost this position due to the French Revolution (July 14, 1789), which broke out one month before Augustin-Louis was born. She was a close relative of the publisher who published most of Cauchy's works. Cauchy had two brothers: Alexandre Laurent Cauchy (1792–1857), who became a president of a division of the court of appeal in 1847 and a judge of the court of cassation in 1849, and Eugene François Cauchy (1802–1877), a publicist who also wrote several mathematical works.Ĭauchy married Aloise de Bure in 1818. He (nearly) single-handedly founded complex analysis and the study of permutation groups in abstract algebra.Ī profound mathematician, Cauchy had a great influence over his contemporaries and successors Hans Freudenthal stated: "More concepts and theorems have been named for Cauchy than for any other mathematician (in elasticity alone there are sixteen concepts and theorems named for Cauchy)." Cauchy was a prolific writer he wrote approximately eight hundred research articles and five complete textbooks on a variety of topics in the fields of mathematics and mathematical physics.īiography Youth and education Ĭauchy was the son of Louis François Cauchy (1760–1848) and Marie-Madeleine Desestre. ![]() He was one of the first to state and rigorously prove theorems of calculus, rejecting the heuristic principle of the generality of algebra of earlier authors. Grand Prize of L'Académie Royale des Sciencesīaron Augustin-Louis Cauchy FRS FRSE ( UK: / ˈ k oʊ ʃ i, ˈ k aʊ ʃ i/ KOH-shee, KOW-shee, US: / k oʊ ˈ ʃ iː/ koh- SHEE, French: 21 August 1789 – ) was a French mathematician, engineer, and physicist who made pioneering contributions to several branches of mathematics, including mathematical analysis and continuum mechanics.
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