AcoustID.Chromaprint.Filter.SubtractLog C# (CSharp) Метод

        public static double SubtractLog(double a, double b)
        {
            double r = Math.Log((1.0 + a) / (1.0 + b));

            if (double.IsNaN(r))
            {
                throw new Exception("Filter: SubtractLog = NaN");
            }

            return r;
        }