雙曲線的軌跡(2)
Author: 藍邦偉　老師

雙曲線的軌跡(2)

試求與C:(x-1)²+y²=16相切且過B(7,0)的圓心軌跡

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顯示雙曲線

顯示P\:點軌跡

α = 0 rad (slider from 0*° to 6.283185307179586, step 0.05*°)
B = Point(xAxis)
P: (4 + 2 / cos(α), sqrt(5) * tan(α))
e = Circle(P, Segment[P, B])
v = Vector((0, y(Corner[1])), (0, y(Corner[3])))
u = Vector((x(Corner[1]), 0), (x(Corner[3]), 0))
n = 2 (slider from 1 to 2, step 1)
Q = (1, 0)
a = Segment(P, B)
b = Segment(P, Q)
R = Intersect(e, C)
c = Segment(R, Q)
A: P
f = false
g = false
Q_2: 0.2 * Corner[2] + 0.8 * Corner[1]
Q_3: (x(Q_2), y(Corner[3]))
poly1, h, q_2, q_3, i = Polygon(Corner[1], Q_2, Q_3, Corner[4])
j = Segment(Q_2, Q_3)