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 current standardized notation April 21 is the 111th day of the year in the Gregorian calendar (112th in leap years). ... // Events April 6 - Dutch sailor Jan van Riebeeck establishes a resupply camp for the Dutch East India Company at the Cape of Good Hope, and founded Cape Town. ... November 8 is the 312th day of the year (313th in leap years) in the Gregorian Calendar, with 53 days remaining. ... // Events January 23 - The Principality of Liechtenstein is created within the Holy Roman Empire April 25 - Daniel Defoe publishes Robinson Crusoe June 10 - Battle of Glen Shiel Prussia conducts Europes first systematic census Ongoing events Great Northern War (1700-1721) Births November 30 - Augusta of Saxe-Gotha, Princess of... A mathematician is a person whose area of study and research is mathematics. ... In calculus, Rolles theorem states that if a function f is continuous on a closed interval [a,b] and differentiable on the open interval (a,b), and f(a) = f(b) then there is some number c in the open interval (a,b) such that f (c) = 0. ... Events March 5 - French troops under Marshal Louis-Francois de Boufflers besiege the Spanish-held town of Mons March 29 - Siege of Mons ends to the city’s surrender October 3 - Treaty of Limerick which guaranteed civil rights to catholics was signed. ... The word notation can be used in several senses: In musical composition, the music is represented by musical notation In chemistry, the Lewis notation denotes chemical bonds In quantum mechanics, Diracs Bra-ket notation is another representation of probability amplititudes In relativity, for example, Tensor notation is a general...

to denote the n^th root of x. In mathematics, the principal square root of a non-negative real number is denoted and represents the non-negative real number whose square (the result of multiplying the number by itself) is . ...

Life

Rolle was born in Ambert, Basse-Auvergne. In 1675, he moved from Ambert to Paris and was elected in 1685 to join the Académie Royale 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 Ozanam's problems. Ambert is a commune of France, loctated in the former province of Auvergne. ... History Auvergne was also historically a province of France, deriving its name from Averni, a Gallic tribe who once occupied the area. ... Events January 5 - The Battle of Turckeim August 10 - Building of the Royal Greenwich Observatory began November 11 - Guru Gobind Singh becomes the Tenth Guru of the Sikhs. ... Ambert is a commune of France, loctated in the former province of Auvergne. ... The Eiffel Tower has become a symbol of Paris throughout the world. ... Events February 6 - James Stuart, Duke of York becomes King James II of England and Ireland and King James VII of Scotland. ... The French Academy of Sciences (Académie des sciences) is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French scientific research. ... Events January 26 - Treaty of Karlowitz signed March 30 - the tenth Sikh Master, Guru Gobind Singh created the Khalsa. ... A pension (also known as superannuation) is a retirement plan intended to provide a person with a secure income for life. ... Jean-Baptiste Colbert Jean-Baptiste Colbert (August 29, 1619 – September 6, 1683) served as the French minister of finance for 22 years under King Louis XIV. He achieved a reputation for his work of improving the state of French manufacturing and bringing the economy back from the brink of bankruptcy... Jacques Ozanam (1640 - April 3, 1717) was a French mathematician. ...

Rolle was an early critic of calculus, arguing that it was inaccurate and based upon unsound reasoning. He later changed his opinion. For other uses of the term calculus see calculus (disambiguation) Calculus is a central branch of mathematics, developed from algebra and geometry, and built on two major complementary ideas. ...

Rolle died in Paris. The Eiffel Tower has become a symbol of Paris throughout the world. ...

External link

• Biography at the MacTutor archive