Claude Gaspar Bachet De Méziriac
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Claude Gaspar Bachet De Méziriac
Claude Gaspar Bachet Sieur de Méziriac (9 October 1581 – 26 February 1638) was a French mathematician and poet born in Bourg-en-Bresse, at that time belonging to Duchy of Savoy. He wrote ''Problèmes plaisans et délectables qui se font par les nombresi.e. ''Pleasant and delectable problems that are done by numbers'''', ''Les éléments arithmétiquesi.e. ''Arithmetical elements'''', and a Latin translation of the ''Arithmetica'' of Diophantus (the very translation where Fermat wrote a margin note about Fermat's Last Theorem). He also discovered means of solving indeterminate equations using continued fractions, a method of constructing magic squares, and a proof of Bézout's identity. Biography Claude Gaspar Bachet de Méziriac was born in Bourg-en-Bresse. By the time he reached the age of six, both his mother (Marie de Chavanes) and his father (Jean Bachet) had died. He was then looked after by the Jesuit Order. For a year in 1601, Bachet was a member of the Jesuit Ord ...
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Bourg-en-Bresse
Bourg-en-Bresse (; frp, Bôrg) is the Prefectures in France, prefecture of the Ain Departments of France, department in the Auvergne-Rhône-Alpes Regions of France, region in Eastern France. Located northeast of Lyon, it is the capital of the ancient Provinces of France, province of Bresse ( frp, Brêsse, links=no). In 2018, the Communes of France, commune had a population of 41,248. Geography Bourg-en-Bresse is located at the western base of the Jura Mountains, on the left bank of the Reyssouze (river), Reyssouze, a tributary of the Saône. It lies northeast of Lyon and south-southwest of Lons-le-Saunier. History Roman remains have been discovered at Bourg, but little is known of its early history. It was probably pillaged by Goths in Late Antiquity. Raised to the rank of a free town in 1250, it was at the beginning of the 15th century the capital of the dukes of Duchy of Savoy, Savoy in the province of Bresse. In February 1535 it was conquered by France during a full-scale ...
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Adequality
Adequality is a technique developed by Pierre de Fermat in his treatise ''Methodus ad disquirendam maximam et minimam''''METHOD FOR THE STUDY OF MAXIMA AND MINIMA''
English translation of Fermat's treatise ''Methodus ad disquirendam maximam et minimam''.
(a treatise circulated in France c. 1636) to calculate of functions, s to curves,

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17th-century French Mathematicians
The 17th century lasted from January 1, 1601 ( MDCI), to December 31, 1700 ( MDCC). It falls into the early modern period of Europe and in that continent (whose impact on the world was increasing) was characterized by the Baroque cultural movement, the latter part of the Spanish Golden Age, the Dutch Golden Age, the French ''Grand Siècle'' dominated by Louis XIV, the Scientific Revolution, the world's first public company and megacorporation known as the Dutch East India Company, and according to some historians, the General Crisis. From the mid-17th century, European politics were increasingly dominated by the Kingdom of France of Louis XIV, where royal power was solidified domestically in the civil war of the Fronde. The semi-feudal territorial French nobility was weakened and subjugated to the power of an absolute monarchy through the reinvention of the Palace of Versailles from a hunting lodge to a gilded prison, in which a greatly expanded royal court could be more easily k ...
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16th-century French Jesuits
The 16th century begins with the Julian year 1501 ( MDI) and ends with either the Julian or the Gregorian year 1600 ( MDC) (depending on the reckoning used; the Gregorian calendar introduced a lapse of 10 days in October 1582). The 16th century is regarded by historians as the century which saw the rise of Western civilization and the Islamic gunpowder empires. The Renaissance in Italy and Europe saw the emergence of important artists, authors and scientists, and led to the foundation of important subjects which include accounting and political science. Copernicus proposed the heliocentric universe, which was met with strong resistance, and Tycho Brahe refuted the theory of celestial spheres through observational measurement of the 1572 appearance of a Milky Way supernova. These events directly challenged the long-held notion of an immutable universe supported by Ptolemy and Aristotle, and led to major revolutions in astronomy and science. Galileo Galilei became a champion ...
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Writers From Bourg-en-Bresse
A writer is a person who uses written words in different writing styles and techniques to communicate ideas. Writers produce different forms of literary art and creative writing such as novels, short stories, books, poetry, travelogues, plays, screenplays, teleplays, songs, and essays as well as other reports and news articles that may be of interest to the general public. Writers' texts are published across a wide range of media. Skilled writers who are able to use language to express ideas well, often contribute significantly to the cultural content of a society. The term "writer" is also used elsewhere in the arts and music, such as songwriter or a screenwriter, but also a stand-alone "writer" typically refers to the creation of written language. Some writers work from an oral tradition. Writers can produce material across a number of genres, fictional or non-fictional. Other writers use multiple media such as graphics or illustration to enhance the communication of thei ...
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1638 Deaths
Events January–March * January 4 – **A naval battle takes place in the Indian Ocean off of the coast of Goa at South India as a Netherlands fleet commanded by Admiral Adam Westerwolt decimates the Portuguese fleet. **A fleet of 80 Spanish ships led by Governor-General Sebastián Hurtado de Corcuera attacks the Sultanate of Sulu in the Philippines by beginning an invasion of Jolo island, but Sultan Muwallil Wasit I puts up a stiff resistance. * January 8 – The siege of Shimabara Castle ends after 27 days in Japan's Tokugawa shogunate (now part of Nagasaki prefecture) as the rebel peasants flee reinforcements sent by the shogun Tokugawa Iemitsu. * January 22 – The Shimabara and Amakusa rebels, having joined up after fleeing the shogun's troops, begin the defense of the Hara Castle in what is now Minamishimabara in the Nagasaki prefecture. The siege lasts more than 11 weeks before the peasants are killed. * February 28 – The Scottish National Covenant is si ...
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1581 Births
1581 ( MDLXXXI) was a common year starting on Sunday (link will display the full calendar) in the Julian calendar, and a common year starting on Thursday (link will display full calendar) of the Proleptic Gregorian calendar. Events January–June * March 18 – The Parliament of England's ''Act against Reconciliation to Rome'' imposes heavy fines, for practising Roman Catholicism. * March 25 – Iberian Union: Philip II of Spain is crowned Philip I of Portugal. * April 4 – Following his circumnavigation of the world, Francis Drake is knighted by Elizabeth I of England. July–December * July 14 – English Jesuit Edmund Campion is arrested. * July 26 **The Northern Netherlands (Union of Utrecht) proclaim their independence from Spain in the Act of Abjuration, abjuring loyalty to Philip II of Spain as their sovereign, and appointing Francois, Duke of Anjou, as the new sovereign of the Netherlands; public practice of Roman Catholicism ...
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Library Of Congress
The Library of Congress (LOC) is the research library that officially serves the United States Congress and is the ''de facto'' national library of the United States. It is the oldest federal cultural institution in the country. The library is housed in three buildings on Capitol Hill in Washington, D.C.; it also maintains a conservation center in Culpeper, Virginia. The library's functions are overseen by the Librarian of Congress, and its buildings are maintained by the Architect of the Capitol. The Library of Congress is one of the largest libraries in the world. Its "collections are universal, not limited by subject, format, or national boundary, and include research materials from all parts of the world and in more than 470 languages." Congress moved to Washington, D.C., in 1800 after holding sessions for eleven years in the temporary national capitals in New York City and Philadelphia. In both cities, members of the U.S. Congress had access to the sizable collection ...
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Dictionary Of Scientific Biography
The ''Dictionary of Scientific Biography'' is a scholarly reference work that was published from 1970 through 1980 by publisher Charles Scribner's Sons, with main editor the science historian Charles Gillispie, from Princeton University. It consisted of sixteen volumes. It is supplemented by the ''New Dictionary of Scientific Biography''. Both these publications are included in a later electronic book, called the ''Complete Dictionary of Scientific Biography''. ''Dictionary of Scientific Biography'' The ''Dictionary of Scientific Biography'' is a scholarly English-language reference work consisting of biographies of scientists from antiquity to modern times, but excluding scientists who were alive when the ''Dictionary'' was first published. It includes scientists who worked in the areas of mathematics, physics, chemistry, biology, and earth sciences. The work is notable for being one of the most substantial reference works in the field of history of science, containing extens ...
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Académie Française
An academy (Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of secondary education, secondary or tertiary education, tertiary higher education, higher learning (and generally also research or honorary membership). The name traces back to Plato's school of philosophy, founded approximately 385 BC at Akademia, a sanctuary of Athena, the goddess of wisdom and Skills, skill, north of Ancient Athens, Athens, Greece. Etymology The word comes from the ''Academy'' in ancient Greece, which derives from the Athenian hero, ''Akademos''. Outside the city walls of Athens, the Gymnasium (ancient Greece), gymnasium was made famous by Plato as a center of learning. The sacred space, dedicated to the goddess of wisdom, Athena, had formerly been an olive Grove (nature), grove, hence the expression "the groves of Academe". In these gardens, the philosopher Plato conversed with followers. Plato developed his sessions into a method of teaching philosophy and in 3 ...
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Number Theory
Number theory (or arithmetic or higher arithmetic in older usage) is a branch of pure mathematics devoted primarily to the study of the integers and arithmetic function, integer-valued functions. German mathematician Carl Friedrich Gauss (1777–1855) said, "Mathematics is the queen of the sciences—and number theory is the queen of mathematics."German original: "Die Mathematik ist die Königin der Wissenschaften, und die Arithmetik ist die Königin der Mathematik." Number theorists study prime numbers as well as the properties of mathematical objects made out of integers (for example, rational numbers) or defined as generalizations of the integers (for example, algebraic integers). Integers can be considered either in themselves or as solutions to equations (Diophantine geometry). Questions in number theory are often best understood through the study of Complex analysis, analytical objects (for example, the Riemann zeta function) that encode properties of the integers, primes ...
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