class MyArray {
 
   private:  
       double* array = nullptr;
	   int a = 0;
   public:
 
	   MyArray(int size) ;
	   ~MyArray() { delete[] this->array; }
 
   void set_Array(int index, double wert);
   double get_Array(int index);
   double length_vektor();
   void print();
   double* operator * (double lambda);
   double* operator + (MyArray& arr);
   double operator[]( int index);
};
 
#include <iostream>
 
double f (double x_stelle);
MyArray gradient (MyArray x_vektor,double(*f_ptr)(double x_stelle));
 
MyArray gradient(MyArray x_vektor, double(*f_ptr)(double x_stelle)) {
 
	double h = 10 ^ (-8);
 
 
	//TODO
 
	return x_vektor;
}
 
 
double f(double x_stelle) {
 
        double summ = 0.0;
 
	summ = summ * summ;
 
	return summ;
}

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