x' = x

y'\;=\; \frac{ b }{a}y 

O_1 = Intersect(yAxis, xAxis)
a = 4.1 (slider from 0 to 15, step 0.1)
b = 2.9 (slider from 0 to 15, step 0.1)
E: x^(2.0) / a^(2.0) + y^(2.0) / b^(2.0) = 1.0
C: x^(2.0) + y^(2.0) = a^(2.0)
O = Intersect(yAxis, xAxis)
M = Point(C)
c = OrthogonalLine(M, xAxis)
M' = Intersect(E, c, 2.0)
H = Intersect(c, xAxis)
d = Segment(M, H)
u = Vector(M, M')