public void CoefficientsTest()
 {
     QuadraticInterpolator target = new QuadraticInterpolator(standards());
     double[] actual;
     actual = target.Coefficients();
     Assert.AreEqual(3, actual.Length);
     Assert.AreEqual(8, actual[0]);
     Assert.AreEqual(-3, actual[1]);
     Assert.AreEqual(2, actual[2]);
 }