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witch of Agnesi
[ ah-nyey-zee ]
noun
Geometry.
- 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
/ ɑːˈɪɪ /
noun
- maths a plane curve, symmetrical about the y- axis, having the equation x ² y = 4 a ²(2 a – y ) Sometimes shortened towitch
witch of Agnesi
/ ĭəä-′ŧ /
- 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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51Թ 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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51Թ 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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Example Sentences
Examples have not been reviewed.
Witch of Agnesi hovers like an apparition above a still pool of water, where its varied forms are reflected and distorted.
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In it, she discusses the algebraic curve, now known as the witch of Agnesi.
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He would learn the city, the ignorance of which had resulted in his being hungry—he, a young man college-bred, and with some knowledge of Quintilian's crabbedness, or the equations of X and Y in this or that or the Witch of Agnesi.
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