How do you calculate a bearing from one LAT-LON to another LAT-LON

Distance is OK, but every formula I tried for bearing reports too many parameters, etc.

Does any one have a working calculation?

Distance is:

Acos(Sin(Radians($lat1))*Sin(Radians ($lat2))+Cos(Radians ($lat1))*Cos(Radians ($lat2))*Cos(Radians ($lon2)-Radians ($lon1)))*3437.8

TIA

Guy

See if this helps:

http://www.movable-type.co.uk/scripts/latlong.html