public void TestSqrt()
{
num a = 81;
num a_sqrt = a.Sqrt();
Assert.AreEqual(9, a_sqrt);
num b = 8;
num b_sqrt = b.Sqrt();
num b_sqrt_square = b_sqrt.Pow(2);
Assert.AreEqual(b, b_sqrt_square);
}
public void TestExpressionStringPow()
{
num a = 12;
Assert.AreEqual("12", a.ToExactExpressionString());
num b = a.Pow(2);
Assert.AreEqual("144", a.ToExactExpressionString());
num c = b.Sqrt3();
Assert.AreEqual("2 * sqrt3(21)", a.ToExactExpressionString());
num d = c.Sqrt();
Assert.AreEqual("sqrt(2 * sqrt3(21))", a.ToExactExpressionString());
}
