public static FixedFloat Angle(FixedVector3 from, FixedVector3 to)
 {
     if (from.Magnitude == FixedFloat.Zero || to.Magnitude == FixedFloat.Zero)
     {
         return(FixedFloat.Zero);
     }
     return(FixedFloat.Acos((FixedVector3.Dot(from, to)) / (from.Magnitude * to.Magnitude)));
 }