public void TestPow()
{
string polyBaseString = "2*X*Y^2 - 1";
int exponent = 2;
string expected = "4*X^2*Y^4 - 4*X*Y^2 + 1";
MultivariatePolynomial polyBase = MultivariatePolynomial.Parse(polyBaseString);
MultivariatePolynomial power = MultivariatePolynomial.Pow(polyBase, exponent);
string actual = power.ToString();
TestContext.WriteLine($"Expected: \"{expected}\"; Actual: \"{actual}\"");
Assert.AreEqual(expected, actual, $"Test of: MultivariatePolynomial.Pow({polyBaseString}, {exponent});");
}
public void TestFunctionalComposition001()
{
MultivariatePolynomial indeterminateX = MultivariatePolynomial.Parse("6*X + 1");
MultivariatePolynomial zero = MultivariatePolynomial.Parse("0");
MultivariatePolynomial minusOne = MultivariatePolynomial.Parse("-1");
MultivariatePolynomial one = MultivariatePolynomial.Parse("1");
MultivariatePolynomial X = MultivariatePolynomial.Parse("X");
MultivariatePolynomial even = MultivariatePolynomial.Parse("2*Y");
MultivariatePolynomial odd = MultivariatePolynomial.Parse("2*X + 1");
string expecting1 = "1";
string expecting2 = "6*X + 1";
string expecting3 = "12*Y + 1";
//string expecting4 = "";
//string expecting5 = "";
string actual1 = MultivariatePolynomial.Pow(indeterminateX, 0).ToString();
string actual2 = MultivariatePolynomial.Pow(indeterminateX, 1).ToString();
string actual3 = indeterminateX.FunctionalComposition(new List <Tuple <char, MultivariatePolynomial> >()
{
new Tuple <char, MultivariatePolynomial>('X', even)
}).ToString();
//string actual4 = composition4.ToString();
//string actual5 = composition5.ToString();
Assert.AreEqual(expecting1, actual1);
Assert.AreEqual(expecting2, actual2);
Assert.AreEqual(expecting3, actual3);
//Assert.AreEqual(expecting4, actual4);
//Assert.AreEqual(expecting5, actual5);
}
