Additional info

${\displaystyle (x^{2}+y^{2})^{2}-2c^{2}(x^{2}-y^{2})=a^{4}-c^{4}}$, where ${\displaystyle 2c=|F_{1}F_{2}|}$, ${\displaystyle a=|F_{1}M|\cdot |F_{2}M|}$, ${\displaystyle M}$ is a curve point.

• ${\displaystyle ~c=1.0}$
• ${\displaystyle ~a=0.6,\,0.8,\,1.0,\,1.2,\,1.4,\,1.6,\,\ldots }$

Summary

DescriptionLine of Cassini.svg	English: Cassini line (oval) ${\displaystyle (x^{2}+y^{2})^{2}-2c^{2}(x^{2}-y^{2})=a^{4}-c^{4}}$, where ${\displaystyle 2c=|F_{1}F_{2}|}$, ${\displaystyle a=|F_{1}M|\cdot |F_{2}M|}$, ${\displaystyle M}$ is a curve point. ${\displaystyle ~c=1.0}$ ${\displaystyle ~a=0.6,\,0.8,\,1.0,\,1.2,\,1.4,\,1.6,\,\ldots }$ Русский: Линия (овал) Кассини
Date	3 July 2008
Source	Own work
Author	Zorgit
SVG development InfoField	The SVG code is valid.   This diagram was created with an unknown SVG tool. This diagram is a retouched picture, which means that it has been digitally altered from its original version. Modifications: use cubic bèzier curves.

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