橢圓的軌跡(3)
Author: 藍邦偉　老師

橢圓的軌跡(3)

試求與C_1:(x-1)²+y²=1內切且與C_2:(x+1)²+y²=25內切的圓心軌跡

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顯示橢圓

$ 顯示P點軌跡 $

α = 0 rad (slider from 0 to 6.283185307179586, step 0.003490658503988659)
Q_1 = Point(xAxis)
P: (2 * cos(α), sqrt(3) * sin(α))
Q_2 = Point(xAxis)
d = Circle(P, 5 - Segment[P, Q_2])
A = Intersect(C_2, d, 1)
A_0: (Corner[1] + Corner[3]) / 2
u = Vector((x(Corner[1]), 0), (x(Corner[3]), 0))
v = Vector((0, y(Corner[1])), (0, y(Corner[3])))
n = 1 (slider from 1 to 2, step 1)
P_2: 0.2 * Corner[2] + 0.8 * Corner[1]
Q_3: (x(P_2), y(Corner[4]))
poly1, a, p_2, q_3, b = Polygon(Corner[1], P_2, Q_3, Corner[4])
e = Segment(P_2, Q_3)
f = false
g = false
R: P
h = Segment(A, Q_2)
i = Ray(P, Q_1)
B = Intersect(d, i)
j = Segment(P, B)