private Length Sqrt(Length l)
 {
     return(Length.FromMeters(Math.Sqrt(l.Meters())));
 }
 public static Angle Atan2(Length y, Length x)
 {
     return(Atan2(y.Meters(), x.Meters()));
 }
        private Length Square(Length l)
        {
            var m = l.Meters();

            return(Length.FromMeters(m * m));
        }