witch of Agnesi
noun Etymology: Maria Gaetana Agnesi died 1799 Italian mathematician; witch, translation of Italian versiera cubic curve (influenced by Italian versiera female demon) Date: 1875 a plane cubic curve that is symmetric about the y-axis and approaches the x-axis as an asymptote and that has the equation x2y = 4a2(2a - y)

New Collegiate Dictionary. 2001.

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  • Witch of Agnesi — In mathematics, the witch of Agnesi (Italian pronunciation: [a.ˈɲe.zi]), sometimes called the witch of Maria Agnesi is the curve defined as follows. The Witch of Agnesi with labeled points Starting with a fixed circle, a point O on the… …   Wikipedia

  • witch of agnesi — änˈyāzē noun or witch Usage: usually capitalized A Etymology: after Maria Gaetana Agnesi died 1799 Italian mathematician; witch, translation of Italian versiera cubic curve (modification of New Latin versoria versed sine) influenced by versiera… …   Useful english dictionary

  • witch of Agnesi — /ah nyay zee/, Geom. a plane curve symmetrical about the y axis and asymptotic to the x axis, given by the equation x2y=4a2(2a y). Also called versiera. [1870 75; named after Maria Gaetana Agnesi (1718 99), Italian mathematician and philosopher]… …   Universalium

  • witch of A|gne|si — «ah NYAY zee», Mathematics. a plane cubic curve that is symmetrical about the y axis and asymptotic to the x axis, defined by the equation 4a2 (2a ― y) = x2y. ╂[translation of Italian versiera di Agnesi < versiera witch, versed sine + di of +… …   Useful english dictionary

  • Agnesi — is a surname. People with this surname include:* Alberto Agnesi, Mexican telenovela actor * Maria Gaetana Agnesi (1718 1799), Italian linguist, mathematician and philosopher; sister of Maria Teresa * Maria Teresa Agnesi Pinottini (1720 1795),… …   Wikipedia

  • Agnesi, Maria Gaetana — ▪ Italian mathematician born May 16, 1718, Milan, Habsburg crown land [now in Italy] died January 9, 1799, Milan  Italian mathematician and philosopher, considered to be the first woman in the Western world to have achieved a reputation in… …   Universalium

  • Agnesi-Kurve — Die Versiera der Agnesi, oder auch Versiera der Maria Agnesi, ist eine spezielle ebene Kurve, eine algebraische Kurve 3. Ordnung vom Geschlecht 0. Sie ist benannt nach der Mathematikerin Maria Agnesi, die sie 1748 veröffentlichte. Die Kurve wurde …   Deutsch Wikipedia

  • Witch (disambiguation) — A witch is a practitioner of witchcraft. The word witch or its variants may also refer to:Performing arts* The Witch, a 1616 play by Thomas Middleton * The Witch (ballet), a ballet by John CrankoLiterature and comics* The Witch (fairy tale), a… …   Wikipedia

  • witch — I. noun Etymology: Middle English wicche, from Old English wicca, masculine, wizard & wicce, feminine, witch; akin to Middle High German wicken to bewitch, Old English wigle divination, and perhaps to Old High German wīh holy more at victim Date …   New Collegiate Dictionary

  • Witch — Witch, n. [OE. wicche, AS. wicce, fem., wicca, masc.; perhaps the same word as AS. w[=i]tiga, w[=i]tga, a soothsayer (cf. {Wiseacre}); cf. Fries. wikke, a witch, LG. wikken to predict, Icel. vitki a wizard, vitka to bewitch.] [1913 Webster] 1.… …   The Collaborative International Dictionary of English

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