/// <summary>
 ///
 /// </summary>
 public static void Abs(this IDiscreteField <Vec3d> f0, IDiscreteField <Vec3d> result, bool parallel = false)
 {
     if (parallel)
     {
         ArrayMath.AbsParallel(f0.Values, f0.Count, result.Values);
     }
     else
     {
         ArrayMath.Abs(f0.Values, f0.Count, result.Values);
     }
 }