public void TestReflection()
{
Poly cf = new Poly();
NelderMead optim = new NelderMead(cf);
DoubleVector[] simplex = new DoubleVector[3];
simplex[0] = new DoubleVector(new double[2]{1,1});
simplex[1] = new DoubleVector(new double[2]{1,-1});
simplex[2] = new DoubleVector(new double[2]{2,0});
optim.Rho = 1.5;
optim.InitializeMethod(simplex);
optim.IterateMethod();
DoubleVector xr = (1+optim.Rho)*(new DoubleVector(new double[2]{1,0})) - optim.Rho*simplex[2];
Assert.IsTrue(optim.LastStep == NelderMead.Step.Reflection);
Assert.AreEqual(optim.Simplex[0][0],xr[0]);
Assert.AreEqual(optim.Simplex[0][1],xr[1]);
}
public void TestShrink()
{
Poly cf = new Poly();
NelderMead optim = new NelderMead(cf);
DoubleVector[] simplex = new DoubleVector[3];
simplex[0] = new DoubleVector(new double[2]{1,1});
simplex[1] = new DoubleVector(new double[2]{1,-1});
simplex[2] = new DoubleVector(new double[2]{2,0});
optim.Rho = 10;
optim.Psi = 1.5;
optim.InitializeMethod(simplex);
optim.IterateMethod();
Assert.IsTrue(optim.LastStep == NelderMead.Step.Shrink);
}