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limit
limit in mathematics, value approached by a sequence or a function as the index or independent variable approaches some value, possibly infinity. For example, the terms of the sequence 1/2 , 1/4 , 1/8 , 1/16 , … are obviously getting smaller and smaller; since, ...
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linear programming
linear programming solution of a mathematical problem concerning maximum and minimum values of a first-degree (linear) algebraic expression, with variables subject to certain stated conditions (restraints). For example, the problem might be to find the minimum value of the expression x + y subjec...
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factor
factor in arithmetic, any number that divides a given number evenly, i.e., without any remainder. The factors of 12 are 1, 2, 3, 4, 6, and 12. Similarly in algebra, any one of the algebraic expressions multiplied by another to form a product is a factor of that product, e.g., a + b and a - b ar...
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Babylon
Babylon residential village (1990 pop. 12,249), Suffolk co., SE N.Y., on Long Island, on Great South Bay; settled 1689, inc. 1893. The first U.S. wireless station was built there by Marconi.
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numeration
numeration in mathematics, process of designating Numbers according to any particular system; the number designations are in turn called numerals. In any place value system of numeration, a base number must be specified, and groupings are then made by powers of the base number. The position of a ...
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Fort Donelson
Fort Donelson , Confederate fortification in the Civil War, on the Cumberland River at Dover, Tenn., commanding the river approach to Nashville, Tenn. After capturing Fort Henry, on the Tennessee River (Feb. 6, 1862), General Ulysses S. Grant, on Feb. 12, marched his men 12 mi (19 km) to Fort Donels...
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root
root in mathematics, number or quantity r for which an equation f ( r )=0 holds true, where f is some function . If f is a polynomial , r is called a root of f; for example, r =3 and r =-4 are roots of the equation x2 + x -12=0, because (3) 2 +(3)-12=0 and (-4) 2 +(-4)-12=0. In the ...
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Deer Park
Deer Park. The Deer Park (Pāli, migadāya) at Isipatana near present-day Vārāṇasī was the site of the first sermon. After gaining enlightenment (bodhi) the Buddha came here and preached this sermon to five of his former ascetic companions, later known as the pa&#x...
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Túy
Túy , town (1990 pop. 16,248), Pontevedra prov., NW Spain, in Galicia, on the Miño River, opposite the Portuguese town of Valença do Minho. The capital of the Visigothic King Witiza (early 8th cent.), Túy played later an important role in the wars between Castile and Port...
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Dorothy Mary Crowfoot Hodgkin
Dorothy Mary Crowfoot Hodgkin 1910-94, English chemist and X-ray crystallographer, b. Egypt. She received the 1964 Nobel Prize in chemistry for determining the structure of biochemical compounds (particularly of vitamin B 12 ) used to control pernicious anemia. In 1933 she and J. D. Bernal made the...
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