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Michel Rolle

Michel Rolle (April 21, 1652 - November 8, 1719) was a French mathematician. He is best known for Rolle's theorem (1691). He also invented the nowadays standardized notation to denote the :th root of . Rolle was born in Ambert, Basse-Auvergne; he died in Paris.

In 1675 he moved from Ambert to Paris and in 1785 he was elected to join the Académie Royal des Sciences and became a Pensionnaire Géometre of the Académie (1699). He had then already been given a pension by Jean-Baptiste Colbert after solving one of Jacques Ozanams problems.

Rolle was an early critic of calculus; arguing that it was inacurate and based upon unsound reason. He later changed his opinion.

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