double[] pastX = new double[n];
        double l1 = 0;
        double l2 = 0;
        double REL = 0;
        double DIFF = 0;
        do{
            for (int i =0; i < n; i++){
                pastX[i] = currentX[i];
            }
            for (int i = 0; i < n; i++){
                currentX[i]=0;
                for(int j = 0; j < n; j++){
                    currentX[i] += A1[i][j]*pastX[j];
                }
            }
            l1=0;
            l2=0;
            for (int i = 0; i < n; i++){
                l1+=currentX[i];
                l2+=pastX[i];
            }
            l1=sqrt(l1);
            l2=sqrt(l2);
            for (int i = 0; i < n; i++){
                currentX[i]/=l1;
                pastX[i]/=l2;
            }
            REL = l1/l2;
            DIFF = abs(currentX[0]-pastX[0]);
            for (int i = 1; i < n; i++){
                if (abs(currentX[i]-pastX[i]) > DIFF){
                    DIFF = abs(currentX[i]-pastX[i]);
                }
            }
        } while (DIFF < eps);
        System.out.println(1/REL);