Mathematician:Michel Rolle

French mathematician best known for Rolle's Theorem.

Also noted for popularising the $n$th root sign. The usage of $\sqrt[n]x$ had earlier been suggested by Albert Girard.

Nationality
French

History

 * Born: April 21, 1652 in Ambert, Basse-Auvergne.
 * 1675: Moved to Paris.
 * 1685: Elected to Académie Royale des Sciences.
 * 1699: Became Pensionnaire Géometre of the Académie.
 * Died: November 8, 1719

Theorems

 * Rolle's Theorem

Books and Papers

 * 1690: Traité d'Algèbre
 * 1691: Démonstration d'une Méthode pour resoudre les Egalitez de tous les degrez