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witch of Agnesi

[ ah-nyey-zee ]
/ ɑˈnyeɪ zi /
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noun Geometry.

a plane curve symmetrical about the y-axis and asymptotic to the x-axis, given by the equation x2y=4a2(2ay).

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Also called versiera.

Origin of witch of Agnesi

1870–75; named after Maria Gaetana Agnesi (1718–99), Italian mathematician and philosopher
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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British Dictionary definitions for witch of Agnesi

witch of Agnesi
/ (ɑːnˈjeɪzɪ) /

noun

maths a plane curve, symmetrical about the y- axis, having the equation x ² y = 4 a ²(2 ay)Sometimes shortened to: witch

Word Origin for witch of Agnesi

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
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

Scientific definitions for witch of Agnesi

witch of Agnesi
[ wĭch əv än-yāzē ]

A planar cubic curve that is symmetric about the y-axis and that approaches the x-axis as an asymptote. Its equation is x2y = 4a2(2a - y), where a is a constant.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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