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In a message dated 97-04-24 00:03:14 EDT, you write:
 
Looking for a way to compute the distance between two points given the Lat. &
Lon.
 
In the United States Power Squadron we teach a number of ways to compute this
distance.
     * For short distances under 200 nm it's called 'plane sailing'.
     * For distances between 200 < 800 nm it's called 'mid-latitude sailing'.
     * For distances > 800 nm it's called 'mercator sailing'.
 
and the most accurate method is called 'great-circle sailing'.
 
If you are interested to know more contact me at [log in to unmask]
 
Charlie Perkins