function X = newton(FKT,ABL,START,TOL)
X(1) = START;
X(2) = 0;
    while(abs(FKT(X(1))) >= abs(TOL))
        X(1) = X(1) -(FKT(X(1))/ABL(X(1)));
        X(2) = X(2)+1;
    end


end