Method DistLawOfCosinesRAD

DistLawOfCosinesRAD(Double, Double, Double, Double)

Calculates the distance between two lat/lng's using the Law of Cosines. Due to numeric conditioning errors, it is not as accurate as the Haversine formula for small distances. But with double precision, it isn't that bad -- allegedly 1 meter.

See Why is law of cosines more preferable than haversine when calculating distance between two latitude-longitude points?

The arguments and return value are in radians.

Declaration
public static double DistLawOfCosinesRAD(double lat1, double lon1, double lat2, double lon2)
Parameters
Type Name Description
System.Double lat1
System.Double lon1
System.Double lat2
System.Double lon2
Returns
Type Description
System.Double