We now summarize our results. Whenever /5 is within some e neighborhood of 90° (e -> 0), a and y are obtained from Eqs. (6a) and (6b) or Eqs. (9), and ft is obtained from Eq. (2b) or Eq. (8), where in the latter equation the ± signs must be distinguished according to whether ft has been increasing or decreasing in its passage through 90°. Outside of this e neighborhood afiy are always given by Eqs. (2).