geometric -- ellipse class needs help

[Fred T. Hamster]

ellipse:

1. needs foci calculations:
   1. the ellipse has no way of calculating the two foci or the length of the sum of the distances from the foci.
2. new parametric equations for ellipse
   1. y = ab tan theta / sqrt(b^{2 + tan}2 theta * a²⁾
   2. x = ab / sqrt(b^{2 + tan}2 theta * a²⁾
   3. remember that basic ellipse equation is:
   4. 2 2 x y - + - = 1 2 2 a b