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witch of Agnesi

[ ah-nyey-zee ]

noun

, Geometry.
  1. a plane curve symmetrical about the y- axis and asymptotic to the x- axis, given by the equation x 2 y =4 a 2 (2 a y ).


witch of Agnesi

/ ɑːnˈjeɪzɪ /

noun

  1. maths a plane curve, symmetrical about the y- axis, having the equation x ² y = 4 a ²(2 a y ) Sometimes shortened towitch
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


witch of Agnesi

/ wĭchəvän-yā /

  1. A planar cubic curve that is symmetric about the y -axis and that approaches the x -axis as an asymptote. Its equation is x 2y = 4 a 2(2 a y ), where a is a constant.


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Word History and Origins

Origin of witch of Agnesi1

1870–75; named after Maria Gaetana Agnesi (1718–99), Italian mathematician and philosopher
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Word History and Origins

Origin of witch of Agnesi1

C19: named after Maria Gaetana Agnesi (1718–99), Italian mathematician and philosopher; probably so called from the resemblance of the curve to the outline of a witch's hat

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witch mothwitch's mark