e-h-l-e
Author: hamada

A = Intersect(xAxis, yAxis)
c = Circle(A, 2.0)
B = Point(xAxis)
C = Point(c)
a = Segment(B, C)
D = Midpoint(a)
b = OrthogonalLine(D, a)
d = Line(A, C)
E = Intersect(d, b)
e = Segment(B, E)
軌跡1 = Locus(E, C)
F = Midpoint(A, B)
f = OrthogonalLine(F, b)
G = Intersect(b, f)
軌跡2 = Locus(G, C)
g = Circle(E, F)