gg

#include<iostream>
#include<cmath>
#include<iomanip>

using namespace std;

double function1(double* x)
{
    return sin(x[0] + x[1]) - 1.2 * x[0] - 0.1;
}

double function2(double* x)
{
    return x[0] * x[0] + x[1] * x[1] - 1;
}

double function11(double* x)
{
    return cos(x[0] + x[1]) - 1.2;
}

double function12(double* x)
{
    return cos(x[0] + x[1]);
}

double function21(double* x)
{
    return 2 * x[0];
}

double function22(double* x)
{
    return 2 * x[1];
}

int ObrMatrix(double** a, double* x)
{
    double det = function11(x) * function22(x) - function12(x) * function21(x);
    if (det == 0) return 0;
    double arr[2][2];
    arr[0][0] = function21(x);
    arr[0][1] = function22(x);
    arr[1][0] = function12(x);
    arr[1][1] = function11(x);
    a[0][0] = arr[0][0] / det;
    a[0][1] = -arr[1][0] / det;
    a[1][0] = -arr[0][1] / det;
    a[1][1] = arr[1][1] / det;
}

/*void FoundX(double** a, double* x)
{
    cout << "Метод Ньютона!\n\n";
    int i = 0; // for amount of iterations
    ObrMatrix(a, x);
    double x1, x2, X1, X2, eps = 1e-6;
    cout << "|" << setw(4) << "n|" << setw(10) << "X1|" << setw(10) << "X2|" << endl;;
    cout << "|" << setw(3) << i << "|" << setw(9) << x[0] << "|" << setw(9) << x[1] << "|" << endl;
    i++;
    do
    {
        X1 = x[0]; X2 = x[1];
        x1 = a[0][0] * function1(x) + a[0][1] * function2(x), x2 = a[1][0] * function1(x) + a[1][1] * function2(x);
        x[0] -= x1;
        x[1] -= x2;
        cout << "|" << setw(3) << i << "|" << setw(9) << x[0] << "|" << setw(9) << x[1] << "|" << endl;
        i++;
    } while (fabs(x[0] - X1) > eps || fabs(x[1] - X2) > eps);

}
*/
void DelArr(double** a, double* x, int size);

void main()
{
    setlocale(NULL, "ru");
    int size = 2, counter = 0;
    double* x = new double[size];
    x[0] = 0.6; x[1] = 0.6; // начальное приближение
    double** a = new double* [size];
    for (int i = 0; i < size; i++)a[i] = new double[size];
    double X1, X2, x1, x2, eps = 1e-6;
    do
    {
        X1 = x[0]; X2 = x[1];
        x1 = sqrt(1 - x[1] * x[1]);
        x2 = asin(1.2 * x[0] + 0.1) - x[0];
        x[0] = x1;
        x[1] = x2;
        counter += 1;
        cout << counter << "\t" << x[0] << "\t" << x[1] << endl;
    } while (fabs(x[0] - X1) > eps || fabs(x[1] - X2) > eps);

    DelArr(a, x, size);
    system("pause");
}

void DelArr(double** a, double* x, int size)
{
    delete[]x;
    for (int i = 0; i < size; i++)
    {
        delete[] a[i];
    }
    delete[] a;
}