Elx

Elliptix

Refs

https://academo.org/demos/rotation-about-point/
https://www.desmos.com/geometry-beta?lang=fr
https://www.wolframalpha.com/input?i=ellipse&assumption=%22ClashPrefs%22+-%3E+%7B%22PlaneCurve%22%2C+%22Ellipse%22%7D
https://fr.wikipedia.org/wiki/Ellipse_(math%C3%A9matiques)
https://www.usingmaths.com/senior_secondary/javascript/ellipseequation.php
https://www.imo.universite-paris-saclay.fr/~daniel.perrin/CAPES/geometrie/ellipses.pdf
https://www.openalgebra.com/2013/04/ellipses.html
https://fr.wikipedia.org/wiki/Excentricit%C3%A9_orbitale