Arc lengths can be calculated either analytically or numerically. I would much prefer an analytic solution since that would, I assume, be the better choice for a Java applet.

**It is intuitively evident to me that a minimal arc connecting two points on this ellipsoid would coincide with the intersection of the ellipsoid and the plane passing through the center and the two points.**Is this correct? If not, is it close enough for "government work?"

Any ideas would be appreciated.

Charles