Distance calculation (lats and longs)
Does anybody out there know of a quick and reasonably accurate formula for measuring the distance between two points specified in Lat/Long format??
I have come across scores of over-complex examples, mainly from astronomical sites, which I am sure are fine, but they are far too complex for what I am looking for.
I know that in the "real world" your computers work these figures out for you, but I would be grateful if anybody can provide me with an example.
Regards,
???pax