This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
 Geodesy Package Symbol

# SpheroidalDistance

 SpheroidalDistance[pt1, pt2] gives the distance between points pt1 and pt2 on Earth using the spheroidal model of the planet.
• A point pti is expressed as a pair of numbers {latitude, longitude}.
• Each coordinate latitude and longitude can be given in degrees, or as {degrees, minutes}, or {degrees, minutes, seconds}.
• A negative value for a coordinate indicates that the coordinate is South latitude or West longitude.
• Distances are returned in kilometers.
• Note that the model is an approximation formula that only employs machine-precision computation. It is fairly accurate to distances of up to 10000 kilometers on the standard model of Earth.
• The following options can be given:
 SemimajorAxis 6378.14 specify the length of the semimajor axis Eccentricity 0.081819 specify the value of the eccentricity
• With the setting SemimajorAxis->length the length of the semimajor axis in the spheroidal model is assumed to be length kilometers.
• With the setting Eccentricity->v the eccentricity in the spheroidal model is assumed to be v.