This is documentation for Mathematica 8, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)


As of Version 7.0, has become a property of GeodesyData.

is an option for SpheroidalDistance which specifies the eccentricity of the ellipsoid in the spheroidal model.
  • Eccentricity->v specifies that the eccentricity of spheroidal model is the number v.
  • The default setting for Earth is 0.081819, from the WGS-84 standard.