θ

https://www.geogebra.org/haftendorn
Haftendorn, Buch (Springer):
Kurven erkunden und verstehen
Kap 9.5.41: S.292
www.kurven-erkunden-und-verstehen.de

Ha 2016

Strophoide

an-anllagmatisch
=selbstinvers

end_1 = 2.8
a = 2
r_1(x) = (a * (1 - sin(x)) / cos(x))
p: 4.2
r_p(x) = ((-p)) / (1 - cos(x))
O = Intersect(xAxis, yAxis)
d = Circle(O, 1.9880643852752933)
a_k: (1 / 8.4 * 4)
r_k(x) = ((2 * a_k) * cos(x)) - (2 * a_k)
a_1 = CurveCartesian((r_1(t) * cos(t)), (r_1(t) * sin(t)), t, 0, end_1)
a' = Mirror(a_1, d)
k: 2
b: k^(4) / ((2 * a^(2)))
r_2(x) = (k^(2) / a * (1 + sin(x)) / cos(x))
end_2 = 6.3
c = CurveCartesian((r_2(t) * cos(t)), (r_2(t) * sin(t)), t, 0, (2 * π))
A = Point(xAxis)
f = OrthogonalLine(A, xAxis)
B = Intersect(r_1, f, (2.74, -1.3235310811538927))
C = Intersect(r_2, f, (2.74, -3.0222184102489567))
g = Ray(A, C)
e = false