public void ConstructorTest()
{
// Suppose we were given the function x³ + 2x² - 10x and
// we have to find its root, maximum and minimum inside
// the interval [-4,3]. First, we express this function
// as a lambda expression:
Func<double, double> function = x => x * x * x + 2 * x * x - 10 * x;
// And now we can create the search algorithm:
BrentSearch search = new BrentSearch(function, -4, 3);
// Finally, we can query the information we need
Assert.IsTrue(search.Maximize()); // occurs at -2.61
double max = search.Solution;
Assert.IsTrue(search.Minimize()); // occurs at 1.27
double min = search.Solution;
Assert.IsTrue(search.FindRoot()); // occurs at 0.50
double root = search.Solution;
Assert.AreEqual(-2.6103173042172645, max);
Assert.AreEqual(1.2769840667540548, min);
Assert.AreEqual(-0.5, root);
}
