F1 = Point(yAxis)
B1 = Point(xAxis)
C = Intersect(xAxis, yAxis)
c_1 = Circle(C, F1)
A_1, F2 = Intersect(c_1, yAxis)
d = Ellipse(F1, F2, B1)
A2, A1 = Intersect(d, yAxis)
a = Segment(C, A1)
P = Point(d)
d1 = Segment(F1, P)
d2 = Segment(P, F2)
B, B2 = Intersect(d, xAxis)
f = Segment(F1, F2)
ecuacion: x(P)^(2) / x(B1)^(2) + y(P)^(2) / y(A1)^(2)