t

t

https://www.geogebra.org/haftendorn
Haftendorn, Buch (Springer):
Kurven erkunden und verstehen
Kap 9.3.3.1: S.274
www.kurven-erkunden-und-verstehen.de

Ha 2016

O = (0, 0)
a = 2
c = Circle(O, a)
A: (a, 0)
t = 1.2 (slider from -5 to 20, step 0.1)
Q = Rotate(A, t, O)
α = Angle(A, O, Q)
d = CircleArc(O, A, Q)
b = Segment(O, Q)
e = OrthogonalLine(Q, b)
f = Circle(Q, d)
P, C = Intersect(f, e)
g = Segment(Q, P)
h = CurveCartesian((a * (cos(t) + (t * sin(t)))), (a * (sin(t) - (t * cos(t)))), t, 0, 20)
i = OrthogonalLine(Q, xAxis)
j = OrthogonalLine(P, i)
B = Intersect(i, j)
k = Segment(Q, B)
l = Segment(B, P)
D = Point(i)
β = Angle(D, Q, P)
m = false