public void MinGold2()
{
double xmin=0;
//local minimum
double realXmin = 4.057968;
double eps = 1e-5;
int counterMax = 50;
LineSearch ls = new LineSearch();
TestFunction1 f = new TestFunction1();
int counter = ls.FindMinimumViaGoldenSection(f,1,4,5,counterMax,eps,ref xmin);
Assert.IsTrue(counter<counterMax);
Assert.IsTrue (System.Math.Abs(xmin-realXmin)<eps);
}
public void MinGold2()
{
double xmin = 0;
//local minimum
double realXmin = 4.057968;
double eps = 1e-5;
int counterMax = 50;
LineSearch ls = new LineSearch();
TestFunction1 f = new TestFunction1();
int counter = ls.FindMinimumViaGoldenSection(f, 1, 4, 5, counterMax, eps, ref xmin);
Assert.IsTrue(counter < counterMax);
Assert.IsTrue(System.Math.Abs(xmin - realXmin) < eps);
}
public void MinGold3()
{
double xmin=0;
double eps = 1e-5;
double realXmin = -0.75;
int counterMax = 50;
LineSearch ls = new LineSearch();
TestFunction2 f = new TestFunction2();
double [] res = new double[3];
int counter1 = ls.FindMinInterval(f,-10,1,30,ref res);
int counter2 = ls.FindMinimumViaGoldenSection(f,res[0],res[1],res[2],counterMax,eps, ref xmin);
Assert.IsTrue(counter2<counterMax);
Assert.IsTrue (System.Math.Abs(xmin-realXmin)<eps);
}
public void MinGold4()
{
double xmin = 0;
double eps = 1e-5;
double realXmin = -0.75;
int counterMax = 50;
LineSearch ls = new LineSearch();
TestFunction2 f = new TestFunction2();
double[] res = new double[3];
int counter1 = ls.FindMinInterval(f, 1000, 1, 30, ref res);
int counter2 = ls.FindMinimumViaGoldenSection(f, res[0], res[1], res[2], counterMax, eps, ref xmin);
Assert.IsTrue(counter2 < counterMax);
Assert.IsTrue(System.Math.Abs(xmin - realXmin) < eps);
}
