for (Int32 n = N; n < rawECG.Length; n++)
            {
                Double pow = 0;
                Double third = 0;
                for (Int32 i = 1; i <= N; i++)
                {
                    Double first = rawECG[n - i + 1];
                    Double second = rawECG[n - i];
                    pow = Math.Pow(Math.Abs(first - second), 2);
                    third = N - i + 1;
                }
                res.Add(res.Sum() + (pow * third));
            }