Accord.Tests.Math.CobylaTest.ConstructorTest1 C# (CSharp) Method

        public void ConstructorTest1()
        {
            Func<double[], double> function = // min f(x) = 10 * (x+1)^2 + y^2
            x => 10.0 * Math.Pow(x[0] + 1.0, 2.0) + Math.Pow(x[1], 2.0);

            Cobyla cobyla = new Cobyla(2, function);

            Assert.IsTrue(cobyla.Minimize());
            double minimum = cobyla.Value;

            double[] solution = cobyla.Solution;

            Assert.AreEqual(0, minimum, 1e-10);
            Assert.AreEqual(-1, solution[0], 1e-5);
            Assert.AreEqual(0, solution[1], 1e-5);

            double expectedMinimum = function(cobyla.Solution);
            Assert.AreEqual(expectedMinimum, minimum);
        }