https://www.geogebra.org/haftendorn
Haftendorn, Buch (Springer):
Kurven erkunden und verstehen
Kap 9.5.6: S.294
www.kurven-erkunden-und-verstehen.de

Ha 2016

Cassini Kurven
Inversion

Delle

k_i = 2
k = 2.9 (slider from 0 to 5, step 0.01)
e = 3
d: (x^(2) + y^(2))^(2) - ((2 * e^(2)) * (x^(2) - y^(2))) = k^(4) - e^(4)
A = Intersect(xAxis, yAxis)
d_1 = Circle(A, k_i)
d' = Mirror(d, d_1)
b = false
k_b: sqrt(sqrt(k_i^(4) + e^(4)))
k_a: sqrt(sqrt(e^(4) - k_i^(4)))
k_c: (sqrt(2) * e)
F_1: (e, 0)
G_1: (0, e)
Vieleck1, f, g, h, i, F_2, G_2 = Polygon(F_1, G_1, 4)
Vieleck1' = Mirror(Vieleck1, d_1)
k_d: sqrt((-k_i^(2)) + e^(2))
a = false