British Dictionary definitions for witch-of-agnesi
witch of Agnesi
/ɑːnˈjeɪzɪ/
noun
1.
(maths) a plane curve, symmetrical about the y-axis, having the equation x²y = 4a²(2a–y) Sometimes shortened to witch
Word Origin
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
(wĭch əv än-yā'zē) A planar cubic curve that is symmetric about the y-axis and that approaches the x-axis as an asymptote. Its equation is x^{2}y = 4a^{2}(2a - y), where a is a constant.