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d'Alembert, Jean Le Rond

Born: 1717 AD
Died: 1783 AD
Nationality: French
Categories: Mathematicians, Philosophers, Physicists

1717 – Born in Paris, on the 16th of November, d’Alembert was the illegitimate child of the writer Claudine Guérin de Tencin and the chevalier Louis-Camus Destouches, an artillery officer.


1739 – At the age of twelve he entered the jansenist Collège des Quatre-Nations.


1735 – Graduated bachelier in philosophy, law, and the arts at jansenist Collège des Quatre-Nations.


1783 – He entered law school for two years, and was nominated avocat.


1739 – His first contribution to the field of mathematics, pointing out the errors he had detected in L’analyse démontrée.


1740 – Submitted his second scientific work from the field of fluid mechanics Memoire sur le refraction des corps solides.


1745 – D’Alembert was engaged as co-editor for mathematics and science with Diderot.


1740 – He entered the Académie des sciences.


1741 – Joined the Académie de Berlin at 28.


1754 – Elected as member of the Académie française.


1772 – Became Permanent Secretary of Académie française on 9th of April.


1738 – He died of a bladder illness on the 29th of October and was in a common unmarked grave.


In France, the fundamental theorem of algebra is known as the d’Alembert/Gauss theorem.


He created his ratio test, a test to see if a series converges.