SteepestLow(double e1, double e2, double x, double y)
{
this.e1 = e1;
this.e2 = e2;
first = new Point(x, y);
next = new Point(first.x, first.y);
answer = new Point();
GR = new GoldenRatio();
}
static void Main()
{
SteepestLow SL = new SteepestLow(0.0001, 0.01, 2, 2);
GR = new GoldenRatio();
for (int k = 0; ; k++)
{
Console.WriteLine("-------------------------------------------------------------");
SL.grad = SL.gradF(SL.next);
if (SL.normV(SL.grad) < SL.e1)
{
SL.answer = SL.next; break;
}
SL.step = GR.Calculate(SL.next, SL.grad);
SL.first.x = SL.next.x;
SL.first.y = SL.next.y;
SL.next.x = SL.first.x - SL.step * SL.grad.x;
SL.next.y = SL.first.y - SL.step * SL.grad.y;
Console.WriteLine("-------------------------------------------------------------");
Console.WriteLine(SL.step);
Console.WriteLine(k);
Console.WriteLine("-------------------------------------------------------------");
if (SL.normV(new Point(SL.next.x - SL.first.x, SL.next.y - SL.first.y)) < SL.e2)
{
if (Math.Abs(SL.F(SL.next.x, SL.next.y) - SL.F(SL.first.x, SL.first.y)) < SL.e2)
{
SL.answer = SL.next; break;
}
}
}
SL.answer.x = SL.next.x;
SL.answer.y = SL.next.y;
Console.WriteLine();
Console.WriteLine("\nОтвет:" + SL.answer.x + " " + SL.answer.y);
Console.WriteLine(SL.normV(SL.grad));
Console.Read();
}