https://www.geogebra.org/haftendorn
Haftendorn, Buch (Springer):
Kurven erkunden und verstehen
Kap 9.3.3: S.273
www.kurven-erkunden-und-verstehen.de

Ha 2016

a = 0.5
c: y = (a * x^(2))
Q = Point(c)
f = Tangent(Q, c)
g = OrthogonalLine(Q, f)
k = 3
d = Circle(Q, k)
A, B = Intersect(d, g)
h = Segment(B, Q)
Ortslinie1 = Locus(B, Q)
b: (y - 1 / ((2 * a)))^(3) = (27 / ((16 * a)) * x^(2))
e = false