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Great Circle Calculation

Great Circle Caculations for Distance Coordinates (DMS)

Lat 1:o ' " Lon 1:o ' " Lat 2:o ' " Lon 2:o ' " or Coordinates Decimal: Lat 1: Lon 1: Lat 2: Lon 2:

Based on Formula at: http://www.answers.com/topic/great-circle-distance