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Mathematics, the science of structure, order, and relation that has evolved from elemental practices of counting, measuring, and describing the shapes of objects. It deals with logical reasoning and quantitative calculation, and its development has involved an increasing degree of idealization and...
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Displaying Featured Mathematics Articles

Bill GatesBill Gates, American computer programmer and entrepreneur who cofounded Microsoft Corporation, the world’s largest personalcomputer software company. Gates wrote his first software program at the age of 13. In high school he helped form a group of programmers who computerized their school’s…

Mark ZuckerbergMark Zuckerberg, American computer programmer who was cofounder and CEO (2004– ) of Facebook, a social networking Web site. After attending Phillips Exeter Academy, Zuckerberg enrolled at Harvard University in 2002. On February 4, 2004, he launched thefacebook.com (renamed Facebook in 2005), a…

Isaac NewtonIsaac Newton, English physicist and mathematician, who was the culminating figure of the Scientific Revolution of the 17th century. In optics, his discovery of the composition of white light integrated the phenomena of colours into the science of light and laid the foundation for modern physical…

Alan TuringAlan Turing, British mathematician and logician, who made major contributions to mathematics, cryptanalysis, logic, philosophy, and mathematical biology and also to the new areas later named computer science, cognitive science, artificial intelligence, and artificial life. The son of a civil…

Normal distributionNormal distribution, the most common distribution function for independent, randomly generated variables. Its familiar bellshaped curve is ubiquitous in statistical reports, from survey analysis and quality control to resource allocation. The graph of the normal distribution is characterized by…

GalileoGalileo, Italian natural philosopher, astronomer, and mathematician who made fundamental contributions to the sciences of motion, astronomy, and strength of materials and to the development of the scientific method. His formulation of (circular) inertia, the law of falling bodies, and parabolic…

Golden ratioGolden ratio, in mathematics, the irrational number (1 + 5)/2, often denoted by the Greek letter ? or τ, which is approximately equal to 1.618. It is the ratio of a line segment cut into two pieces of different lengths such that the ratio of the whole segment to that of the longer segment is equal…

Fibonacci numbersFibonacci numbers, the elements of the sequence of numbers 1, 1, 2, 3, 5, 8, 13, 21, …, each of which, after the second, is the sum of the two previous numbers. These numbers were first noted by the medieval Italian mathematician Leonardo Pisano (“Fibonacci”) in his Liber abaci (1202; “Book of the…

Marissa MayerMarissa Mayer, American software engineer and businesswoman who greatly influenced the development of Google Inc., the world’s leading search engine company, in its early years. She later served as CEO and president of Yahoo! Inc. (2012–17). Mayer and her younger brother grew up in Wausau, where…

Steve WozniakSteve Wozniak, American electronics engineer, cofounder, with Steve Jobs, of Apple Computer, and designer of the first commercially successful personal computer. Wozniak—or “Woz,” as he was commonly known—was the son of an electrical engineer for the Lockheed Missiles and Space Company in…

Srinivasa RamanujanSrinivasa Ramanujan, Indian mathematician whose contributions to the theory of numbers include pioneering discoveries of the properties of the partition function. When he was 15 years old, he obtained a copy of George Shoobridge Carr’s Synopsis of Elementary Results in Pure and Applied Mathematics,…

Poisson distributionPoisson distribution, in statistics, a distribution function useful for characterizing events with very low probabilities of occurrence within some definite time or space. The French mathematician SiméonDenis Poisson developed his function in 1830 to describe the number of times a gambler would…

Larry PageLarry Page, American computer scientist and entrepreneur who, with Sergey Brin, created the online search engine Google, one of the most popular sites on the Internet. Page, whose father was a professor of computer science at Michigan State University, received a computer engineering degree from…

Game theoryGame theory, branch of applied mathematics that provides tools for analyzing situations in which parties, called players, make decisions that are interdependent. This interdependence causes each player to consider the other player’s possible decisions, or strategies, in formulating his own…

Aaron SwartzAaron Swartz, American computer programmer and Internet activist (born Nov. 8, 1986, Chicago, Ill.—died Jan. 11, 2013, New York, N.Y.), was regarded by many as a programming wizard who led a crusade to make information on the Internet freely available to all. At the age of 14, Swartz helped develop…

Sergey BrinSergey Brin, American computer scientist and entrepreneur who created, along with Larry Page, the online search engine Google, one of the most successful sites on the Internet. Brin’s family moved from Moscow to the United States in 1979. After receiving degrees (1993) in computer science and…

Computer scienceComputer science, the study of computers and computing, including their theoretical and algorithmic foundations, hardware and software, and their uses for processing information. The discipline of computer science includes the study of algorithms and data structures, computer and network design,…

Roman numeralRoman numeral, any of the symbols used in a system of numerical notation based on the ancient Roman system. The symbols are I, V, X, L, C, D, and M, standing respectively for 1, 5, 10, 50, 100, 500, and 1,000 in the HinduArabic numeral system. A symbol placed after another of equal or greater…

John NashJohn Nash, American mathematician who was awarded the 1994 Nobel Prize for Economics for his landmark work, first begun in the 1950s, on the mathematics of game theory. He shared the prize with John C. Harsanyi and Reinhard Selten. In 2015 Nash won (with Louis Nirenberg) the Abel Prize for his…

Moore's lawMoore’s law, prediction made by American engineer Gordon Moore in 1965 that the number of transistors per silicon chip doubles every year. For a special issue of the journal Electronics, Moore was asked to predict developments over the next decade. Observing that the total number of components in…

John von NeumannJohn von Neumann, Hungarianborn American mathematician. As an adult, he appended von to his surname; the hereditary title had been granted his father in 1913. Von Neumann grew from child prodigy to one of the world’s foremost mathematicians by his midtwenties. Important work in set theory…

Ada LovelaceAda Lovelace, English mathematician, an associate of Charles Babbage, for whose prototype of a digital computer she created a program. She has been called the first computer programmer. Lovelace was the daughter of famed poet Lord Byron and Annabella Milbanke Byron, who legally separated two months…

StatisticsStatistics, the science of collecting, analyzing, presenting, and interpreting data. Governmental needs for census data as well as information about a variety of economic activities provided much of the early impetus for the field of statistics. Currently the need to turn the large amounts of data…

Pythagorean theoremPythagorean theorem, the wellknown geometric theorem that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse (the side opposite the right angle)—or, in familiar algebraic notation, a2 + b2 = c2. Although the theorem has long been associated with Greek…

Bayes's theoremBayes’s theorem, in probability theory, a means for revising predictions in light of relevant evidence, also known as conditional probability or inverse probability. The theorem was discovered among the papers of the English Presbyterian minister and mathematician Thomas Bayes and published…

Tim BernersLeeTim BernersLee, British computer scientist, generally credited as the inventor of the World Wide Web. In 2004 he was awarded a knighthood by Queen Elizabeth II of the United Kingdom and the inaugural Millennium Technology Prize (€1 million) by the Finnish Technology Award Foundation. Computing…

AryabhataAryabhata, astronomer and the earliest Indian mathematician whose work and history are available to modern scholars. He is also known as Aryabhata I or Aryabhata the Elder to distinguish him from a 10thcentury Indian mathematician of the same name. He flourished in Kusumapura—near Patalipurta…

CalculusCalculus, branch of mathematics concerned with the calculation of instantaneous rates of change (differential calculus) and the summation of infinitely many small factors to determine some whole (integral calculus). Two mathematicians, Isaac Newton of England and Gottfried Wilhelm Leibniz of…

ArchimedesArchimedes, the mostfamous mathematician and inventor in ancient Greece. Archimedes is especially important for his discovery of the relation between the surface and volume of a sphere and its circumscribing cylinder. He is known for his formulation of a hydrostatic principle (known as Archimedes’…

Julian AssangeJulian Assange, Australian computer programmer who founded the media organization WikiLeaks. Practicing what he called “scientific journalism”—i.e., providing primary source materials with a minimum of editorial commentary—Assange, through WikiLeaks, released thousands of internal or classified…