private static void CheckSciNotation(DD x, String expectedStr)
        {
            var xStr = x.ToSciNotation();

            Console.WriteLine("Sci Notation: " + xStr);
            Assert.AreEqual(xStr, expectedStr);
        }
        private static void CheckSciNotation(DD x, string expectedStr)
        {
            string xStr = x.ToSciNotation();

            // System.Console.WriteLine("Sci Notation: " + xStr);
            Assert.AreEqual(xStr, expectedStr);
        }
	private static void CheckSciNotation(DD x, String expectedStr) {
		var xStr = x.ToSciNotation();
		Console.WriteLine("Sci Notation: " + xStr);
		Assert.AreEqual(xStr, expectedStr);
	}