Δx32 = 4 (slider from -5 to 5, step 0.1)
Δx = 1 (slider from -5 to 5, step 0.1)
A = Point(xAxis)
a = Line(A, yAxis)
D = Point(a)
A': (x(A) + Δx, 0)
A'': (x(A') + Δx32, 0)
G = Midpoint(A', A'')
m_2 = Line(G, yAxis)
M_2 = Point(m_2)
B = Midpoint(A, A')
m_1 = Line(B, yAxis)
M_1 = Point(m_1)
D' = Mirror(D, M_1)
D'' = Mirror(D', M_2)
u = Vector(A, A')
b = Line(A', yAxis)
v = Vector(D, D')
d = Line(D, xAxis)
E = Intersect(yAxis, d)
e = Line(D'', xAxis)
F = Intersect(e, yAxis)
w = Vector(E, F)
z = Vector(A', A'')
f = Line(A'', yAxis)
h = Vector(D', D'')