NationMaster - Encyclopedia: Trapezium

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Category: Disambiguation A trapezoid (in North America) or trapezium (in Britain and elsewhere) is a quadrilateral, which is defined as a shape with four sides, which has one set of parallel sides. ... The Trapezium, or Orion Trapezium Cluster is a tight open cluster of stars that lies within the heart of the Orion Nebula, in the constellation of Orion. ... The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula situated south of Orions Belt. ... The trapezium is a bone in the human hand. ... This article needs additional references or sources for verification. ... Henry Rathvon is a puzzle writer. ... Image File history File links Disambig_gray. ...

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Trapezium rule - Wikipedia, the free encyclopedia (214 words)
	The trapezium rule works by approximating the region under the graph of the function f(x) by a trapezium and calculating its area.
	The trapezium rule is one of a family of formulas for numerical integration called Newton-Cotes formulas.
	Moreover, the trapezium rule tends to become extremely accurate when periodic functions are integrated over their periods, a fact best understood in connection with the Euler-Maclaurin summation formula.

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