Accord.Math.Norm.SquareEuclidean C# (CSharp) Метод

        public static double SquareEuclidean(this double[,] a)
        {
            double sum = 0;
            foreach (var v in a)
                sum += v * v;
            return sum;
        }

        /// <summary>
        ///   Gets the Euclidean norm for a matrix.
        /// </summary>
        ///
        public static double[] Euclidean(this Sparse <double>[] a, int dimension)
        {
            var norm = Norm.SquareEuclidean(a, dimension);

            for (int i = 0; i < norm.Length; i++)
            {
                norm[i] = (double)System.Math.Sqrt(norm[i]);
            }
            return(norm);
        }