$ε^0$

$ε^2$

$ε^3$

$ε^4$

\epsilon^2

O = Intersect(xAxis, yAxis)
e0 = Point(xAxis)
c = Circle(O, e0)
ε = Point(c)
poly1, f, g, h, i, j, e2, e3, e4 = Polygon(e0, ε, 5)