public void EllipticΠTest()
        {
            object ret = null;

            foreach (var d1 in X)
            {
                foreach (var d2 in X)

                {
                    try
                    {
                        ret = SpecialFunctions.EllipticΠ(d1, d2);
                    }
                    catch (Exception ex)
                    {
                        Assert.Fail("Exception occured: " + ex);
                    }
                    Assert.IsNotNull(ret);
                }
            }
        }