p: 2.5
a: 1 / ((2 * p))
c: y = (a * x^(2))
Q = Point(c)
g = Tangent(Q, c)
B = Intersect(g, xAxis)
O: (0, 0)
H: (x(Q), 0)
i = OrthogonalLine(H, g)
G = Intersect(i, yAxis)
d = Circle(G, O)
h = OrthogonalLine(Q, xAxis)
A = Intersect(g, i)
u = Vector(Q, H)
v = Vector(H, A)