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lemniscate

   Also found in: Wikipedia 0.01 sec.
lemniscate [ˈlɛmnɪskɪt]
n
(Mathematics) a closed plane curve consisting of two symmetrical loops meeting at a node. Equation: (x2 + y2)2 = a2(x2 - y2), where a is the greatest distance from the curve to the origin. The symbol for infinity (∞) is an example


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He then considers the work of Lagrange, Galois and Kronecker in concert, the process of computing Galois groups, solvable permutation groups, and the lemniscate, including the lemniscatic function, complex multiplication and Abel's theorem.
The reverse shows a section of Abel's work book, featuring a lemniscate (from the Greek lemniskos, ribbon).
 
 
 
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