**georg1@hound.UUCP (G.KARAWAS)** (11/20/85)

Does anyone have a reference for the EXACT calculation of the length of (the) geodesic between two points on the surface of a (rotational) ellipsoid? Is it expressible in terms of elliptic integrals? Geodesy books give a lot of formulas, with little explanation. Books on Differential Geometry state the differential equations for the geodesics with no solution. Any information will be greatly appreciated.