Portal:Mathematics
The Mathematics Portal
Mathematics is the study of representing and reasoning about abstract objects (such as numbers, points, spaces, sets, structures, and games). Mathematics is used throughout the world as an essential tool in many fields, including natural science, engineering, medicine, and the social sciences. Applied mathematics, the branch of mathematics concerned with application of mathematical knowledge to other fields, inspires and makes use of new mathematical discoveries and sometimes leads to the development of entirely new mathematical disciplines, such as statistics and game theory. Mathematicians also engage in pure mathematics, or mathematics for its own sake, without having any application in mind. There is no clear line separating pure and applied mathematics, and practical applications for what began as pure mathematics are often discovered. (Full article...)
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 ...that an arbitrary quadrilateral will tessellate?
 ...that it has not been proven whether or not every even integer greater than two can be expressed as the sum of two primes?
 ...that the sum of the first n odd numbers divided by the sum of the next n odd numbers is always equal to one third?
 ...that i to the power of i, where i is the square root of 1, is a real number?
 ...an infinite, nonrepeating decimal can be represented using only the number 1 using continued fractions?
 ...that 253931039382791 and the following 18 prime numbers all end in the digit 1?
 ...that the Electronic Frontier Foundation funds awards for the discovery of prime numbers beyond certain sizes?
More Did you know (auto generated)
 ... that former math teacher Dominic Gates won a Pulitzer Prize for his aerospace reporting?
 ... that rings of modular forms are stacky thanks to GAGA?
 ... that the solution to Pell's equation was mistakenly attributed to mathematician John Pell?
 ... that when Rosa M. Morris scored 130 percent in her mathematics exams, a special case had to be made at graduation to avoid handicapping other students?
 ... that 100 years after Mary Emily Sinclair wrote a master's thesis in mathematics on the discriminants of quintic polynomials, Helaman Ferguson based a sculpture on her work?
 ... that the Septet for trumpet, strings and piano was composed by Camille SaintSaëns for a mathematician?
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Johannes Kepler Image credit: User:ArtMechanic 
Johannes Kepler (1571 – 1630) was an Austrian Lutheran mathematician, astronomer and a key figure in the 17th century astronomical revolution. He is best known for his laws of planetary motion, based on his works Astronomia nova and Harmonice Mundi; Kepler's laws provided one of the foundations of Isaac Newton's theory of universal gravitation. Before Kepler, planets' paths were computed by combinations of the circular motions of the celestial orbs; after Kepler astronomers shifted their attention from orbs to orbits—paths that could be represented mathematically as an ellipse.
During his career Kepler was a mathematics teacher at a Graz seminary school (later the University of Graz, Austria), an assistant to Tycho Brahe, court mathematician to Emperor Rudolf II, mathematics teacher in Linz, Austria, and adviser to General Wallenstein. He also did fundamental work in the field of optics and helped to legitimize the telescopic discoveries of his contemporary Galileo Galilei.
Kepler lived in an era when there was no clear distinction between astronomy and astrology, while there was a strong division between astronomy (a branch of mathematics within the liberal arts) and physics (a branch of the more prestigious discipline of philosophy). (Full article...)
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