write a procedure about this code:% Define the function f(x) and its derivative df(x) f = @(x) x - (x/2 + 1/x); % f(x) such that g(x) is the fixed point of f(x) df = @(x) 1 - (1/x - x/2); % Derivative of f(x) % Initial approximation, tolerance, and maximum iterations po = 1.5; TOL = 1e-5; No = 100; % Initialization i = 1; p = po; error = []; % Newton's Method Iteration while i <= No p = po - f(po)/df(po); % Compute next approximation error(i) = abs(p - po); % Compute error % Check for convergence if error(i) < TOL fprintf('The procedure was successful: p = %f ', p); figure; plot(1:i, error, '-o'); xlabel('Iteration'); ylabel('Error'); grid on; return; end % Update for next iteration po = p; i = i + 1; end fprintf('The method failed after %d iterations ', No); figure; plot(1:i-1, error, '-o'); xlabel('Iteration'); ylabel('Error'); grid on