Parabolic VLA
Author: Farrar

Fit the parabola to one of the radio telescopes by moving the focus and the directrix (move points A and B to change the directrix)

Challenge: can you find a conic equation for the telescope?

A = (-3.1196325530061273, 0.4139208484445822)
B = (-1.8228825057427434, 0.4139208484445822)
directrix = Line(A, B)
focus = (-0.3878124534379321, 2.7134909322583147)
C = Point(directrix)
b = Segment(C, focus)
c = LineBisector(b)
d = OrthogonalLine(C, directrix)
D = Intersect(c, d)
loc1 = Locus(D, C)
E = (0, 0)
RotatePicture = (10.003477925299311, -0.0010391666797005393)
e = Segment(D, focus)
f = Segment(D, C)