| x = | p2y2 − (y2 − c2)2 | , √ (x2 + y2) = | p2y2 − (y2 − c2)2 |
| 2p (y2 − c2) | 2p (y2 − c2) |
(13)
a C4; while the absolute path of a particle in space will be given by
| dy | = − | r − x | = | y2 − c2 | , |
| dx | y | 2py |
(14)
y2 − c2 = a2 e−x/p.
(15)
46. Between two concentric spheres, with
a2 + λ = r2, a2 + λ1 = a12,
(1)