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Émile Léger
Émile Léger (1795–1838) was a French mathematician. Life and work Leger studied at ''Lycée de Mayence'' (now Mainz in Germany, capital of the French department of Mont-Tonnerre during the French First Republic), where his father Claude was professor of rhetoric. In 1813 he entered the École Polytechnique. With other students, he helped defend Paris during the Hundred Days of Napoleon in March 1815, and was decorated for bravery. In 1816, he left school to go to Montmorency where his father founded an institution to prepare young people for the entrance exams to Paris universities. After his father retired, he managed the institution., page 410. Léger only published four papers on mathematics,, MacTutor History of Mathematics. but one of them seems to be the first to recognize the worst case in the euclidean algorithm: when the inputs are proportional to consecutive Fibonacci numbers In mathematics, the Fibonacci sequence is a sequence in which each element is the su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sainte-Menehould
Sainte-Menehould (; ) is a Communes of France, commune in the Marne (department), Marne Departments of France, department in north-eastern France. The 18th-century French playwright Charles-Georges Fenouillot de Falbaire de Quingey (1727–1800) died in Sainte-Ménéhould. It was the Subprefectures in France, subprefecture of the arrondissement of Sainte-Menehould until its abolition in April 2017.Décret n° 2017-453 du 29 mars 2017 portant suppression de l'arrondissement de Sainte-Menehould (département de la Marne) History Dom Pérignon (monk), Dom Pérignon, the Order of St. Benedict, Benedictine monk who made important contributions to the production and quality of Champag ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
France
France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlantic, North Atlantic, the French West Indies, and List of islands of France, many islands in Oceania and the Indian Ocean, giving it Exclusive economic zone of France, one of the largest discontiguous exclusive economic zones in the world. Metropolitan France shares borders with Belgium and Luxembourg to the north; Germany to the northeast; Switzerland to the east; Italy and Monaco to the southeast; Andorra and Spain to the south; and a maritime border with the United Kingdom to the northwest. Its metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea. Its Regions of France, eighteen integral regions—five of which are overseas—span a combined area of and hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of cities in the European Union by population within city limits, fourth-most populous city in the European Union and the List of cities proper by population density, 30th most densely populated city in the world in 2022. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, culture, Fashion capital, fashion, and gastronomy. Because of its leading role in the French art, arts and Science and technology in France, sciences and its early adoption of extensive street lighting, Paris became known as the City of Light in the 19th century. The City of Paris is the centre of the ÃŽle-de-France region, or Paris Region, with an official estimated population of 12,271,794 inhabitants in January 2023, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematics
Mathematics is a field of study that discovers and organizes methods, Mathematical theory, theories and theorems that are developed and Mathematical proof, proved for the needs of empirical sciences and mathematics itself. There are many areas of mathematics, which include number theory (the study of numbers), algebra (the study of formulas and related structures), geometry (the study of shapes and spaces that contain them), Mathematical analysis, analysis (the study of continuous changes), and set theory (presently used as a foundation for all mathematics). Mathematics involves the description and manipulation of mathematical object, abstract objects that consist of either abstraction (mathematics), abstractions from nature orin modern mathematicspurely abstract entities that are stipulated to have certain properties, called axioms. Mathematics uses pure reason to proof (mathematics), prove properties of objects, a ''proof'' consisting of a succession of applications of in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
École Polytechnique
(, ; also known as Polytechnique or l'X ) is a ''grande école'' located in Palaiseau, France. It specializes in science and engineering and is a founding member of the Polytechnic Institute of Paris. The school was founded in 1794 by mathematician Gaspard Monge during the French Revolution and was militarized under Napoleon I in 1804. It is still supervised by the Ministry of Armed Forces (France), French Ministry of Armed Forces. Originally located in the Latin Quarter, Paris, Latin Quarter in central Paris, the institution moved to Palaiseau in 1976, in the Paris-Saclay, Paris-Saclay technology cluster. French engineering students undergo initial military training and have the status of paid Aspirant, officer cadets. The school has also been awarding doctorates since 1985, masters since 2005 and bachelors since 2017. Most Polytechnique engineering graduates go on to become top executives in companies, senior civil servants, military officers, or researchers. List of É ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euclidean Algorithm
In mathematics, the Euclidean algorithm,Some widely used textbooks, such as I. N. Herstein's ''Topics in Algebra'' and Serge Lang's ''Algebra'', use the term "Euclidean algorithm" to refer to Euclidean division or Euclid's algorithm, is an efficient method for computing the greatest common divisor (GCD) of two integers, the largest number that divides them both without a remainder. It is named after the ancient Greek mathematician Euclid, who first described it in his ''Elements'' (). It is an example of an ''algorithm'', a step-by-step procedure for performing a calculation according to well-defined rules, and is one of the oldest algorithms in common use. It can be used to reduce fractions to their simplest form, and is a part of many other number-theoretic and cryptographic calculations. The Euclidean algorithm is based on the principle that the greatest common divisor of two numbers does not change if the larger number is replaced by its difference with the smaller ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematician
A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematical model, models, and mathematics#Calculus and analysis, change. History One of the earliest known mathematicians was Thales of Miletus (); he has been hailed as the first true mathematician and the first known individual to whom a mathematical discovery has been attributed. He is credited with the first use of deductive reasoning applied to geometry, by deriving four corollaries to Thales's theorem. The number of known mathematicians grew when Pythagoras of Samos () established the Pythagorean school, whose doctrine it was that mathematics ruled the universe and whose motto was "All is number". It was the Pythagoreans who coined the term "mathematics", and with whom the study of mathematics for its own sake begins. The first woman math ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mainz
Mainz (; #Names and etymology, see below) is the capital and largest city of the German state of Rhineland-Palatinate, and with around 223,000 inhabitants, it is List of cities in Germany by population, Germany's 35th-largest city. It lies in the Frankfurt Rhine-Main, Rhine-Main Metropolitan Region—Germany's second-largest metropolitan region after Rhine-Ruhr—which also encompasses the cities of Frankfurt am Main, Wiesbaden, Darmstadt, Offenbach am Main, and Hanau. Mainz is located at the northern end of the Upper Rhine Plain, on the left bank of the Rhine. It is the largest city of Rhenish Hesse, a region of Rhineland-Palatinate that was historically part of Grand Duchy of Hesse, Hesse, and is Rheinhessen (wine region), one of Germany's most important wine regions because of its mild climate. Mainz is connected to Frankfurt am Main by the Rhine-Main S-Bahn rapid transit system. Before 1945, Mainz had six boroughs on the other side of the Rhine (see: :de:Rechtsrheinische St ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mont-Tonnerre
Mont-Tonnerre () was a department of the First French Republic and later the First French Empire in present-day Germany. It was named after the highest point in the Palatinate, the '' Donnersberg'' ("Thunder Mountain", possibly referring to Donar, god of thunder). It was the southernmost of four departments formed in 1797 when the west bank of the Rhine was annexed by France. Prior to the French occupation, its territory was divided between the Archbishopric of Mainz, the Bishopric of Speyer, the Bishopric of Worms, Nassau-Weilburg, Hesse-Darmstadt, the Electorate of the Palatinate and the imperial cities of Worms and Speyer. Its territory is now part of the German states of Rhineland-Palatinate and Saarland. Its capital was Mainz (). The department was subdivided into the following arrondissements and cantons (situation in 1812): [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French First Republic
In the history of France, the First Republic (), sometimes referred to in historiography as Revolutionary France, and officially the French Republic (), was founded on 21 September 1792 during the French Revolution. The First Republic lasted until the declaration of the First French Empire, First Empire on 18 May 1804 under Napoleon, Napoléon Bonaparte, although the form of government changed several times. On 21 September 1792, the deputies of the Convention, gathered for the first time, unanimously decide the Proclamation of the abolition of the monarchy, abolition of the constitutional monarchy in France. Although the Republic was never officially proclaimed on 22 September 1792, the decision was made to date the acts from the year I of the Republic. On 25 September 1792, the Republic was declared "one and indivisible". From 1792 to 1802, France was at war with the rest of Europe. It also experienced internal conflicts, including the War in the Vendée, wars in Vendée. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hundred Days
The Hundred Days ( ), also known as the War of the Seventh Coalition (), marked the period between Napoleon's return from eleven months of exile on the island of Elba to Paris on20 March 1815 and the second restoration of King Louis XVIII on 8 July 1815 (a period of 110 days). This period saw the War of the Seventh Coalition, and includes the Waterloo campaign and the Neapolitan War as well as several other minor campaigns. The phrase ''les Cent Jours'' (the Hundred Days) was first used by the prefect of Paris, Gaspard, comte de Chabrol, in his speech welcoming the king back to Paris on 8 July. Napoleon returned while the Congress of Vienna was sitting. On 13 March, seven days before Napoleon reached Paris, the powers at the Congress of Vienna declared him an outlaw, and on 25 March, Austria, Prussia, Russia and the United Kingdom, the four Great Powers and key members of the Seventh Coalition, bound themselves to put 150,000 men each into the field to end his rule. This s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montmorency, Val-d'Oise
Montmorency () is a Communes of France, commune in the Val-d'Oise department, in the northern suburbs of Paris, France. It is located from the Kilometre Zero, center of Paris. Montmorency was the fief of the Montmorency family, one of the oldest and most distinguished families of the French nobility. It is now a wealthy suburb of Paris. Name The name Montmorency was recorded for the first time in Medieval Latin as ''Mons Maurentiacus'' (attested in 993). ''Mons Maurentiacus'', literally "Mount Maurentiacus", was the name given to the promontory over which a castle was built in the Early Middle Ages. ''Maurentiacus'', the name of the area surrounding the promontory, meant "estate of Maurentius", probably a Gallo-Roman landowner. In 1689 Montmorency was officially renamed ''Enghien'', but the village on the slopes of the promontory was still referred to as "Montmorency" by most people. During the French Revolution, at the creation of commune in France, French communes in 1790, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
