Artemis.Engine.Maths.SpecialFunctions.Atanh C# (CSharp) Метод

        public static double Atanh(double x)
        {
            if (x > 1.0 || x < -1.0) throw
                                         new ArithmeticException("range exception");
            return 0.5 * Math.Log((1.0 + x) / (1.0 - x));
        }