n-ellipse (Q6441)

generalization of the ellipse allowing more than two foci

Language	Label	Description	Also known as
English	n-ellipse	generalization of the ellipse allowing more than two foci	multifocal ellipse polyellipse egglipse k-ellipse Tschirnhaus'sche Eikurve

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\left\{(x,y)\in R^{2}:\sum _{i=1}^{n}{\sqrt {(x-u_{i})^{2}+(y-v_{i})^{2}}}=d\right\}

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