Lectionary Calendar
Thursday, November 21st, 2024
the Week of Proper 28 / Ordinary 33
the Week of Proper 28 / Ordinary 33
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Bible Encyclopedias
Witch of Agnesi
1911 Encyclopedia Britannica
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In geometry, a cubic curve invented by Maria Gaetana Agnesi. It is constructed by the following method: Let AQB be a semicircle of diameter AB, produce MQ the ordinate of Q to P so that MQ: MP :: AM: AB. Then the locus of P is the witch. The cartesian equation, if A be taken as origin and AB (= 2a ) for the axis of x, is xy 2 =4a2(2a - x). The curve consists of one branch entirely to the left of the line x= 2a and having the axis of y as an asymptote.
Copyright Statement
These files are public domain.
These files are public domain.
Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Witch of Agnesi'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/w/witch-of-agnesi.html. 1910.
Chisholm, Hugh, General Editor. Entry for 'Witch of Agnesi'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/w/witch-of-agnesi.html. 1910.
