public static bool operator ==(Angle a, Angle b)
{
object o1 = a;
object o2 = b;
if (o1 == null && o2 == null)
{
return(true);
}
if (o1 == null ^ o2 == null)
{
return(false);
}
decimal bConvertedValue = ConvertAngleValue(b.Value, b.Units, a.Units);
return(bConvertedValue.ApproximatelyEquals(a.Value));
}
