Ha 2016

Kegelschnitt aus 5 Punkten dazu

violett gedreht

Parabel, echt

A = (-4.6, 0.32)
B = (-2.74, 3.4)
f = Segment(A, B)
C = (1.58, 1.02)
t = 0.4 (slider from 0 to 1, step 0.1)
c = Circle(A, (t * f))
D = Intersect(c, f)
g = Segment(B, C)
d = Circle(B, (t * g))
E = Intersect(d, g)
h = Segment(D, E)
e = Circle(D, (t * h))
P = Intersect(e, h)
bezierOrt = Locus(P, t)
G = Point(bezierOrt)
H = Point(bezierOrt)
k = Conic(A, H, G, C, P)
F, K = Focus(k)
S, I, J, L = Vertex(k)
i = Ray(S, F)
m = Slope(i)
u = Vector(A, B)
v = Vector(B, C)
w = Vector(D, E)
a(x, y) = (51.75 * x) - (8.83 * (-1.78652 + y)^(2)) ≟ -157.402
α: atan(m)
b = false
k' = Rotate(k, (-α), S)
pa: (-6.94 * y^(2)) + (40.68 * x) + (24.81 * y) = -101.58
l = false