Matlab coding errors call when run..Please help to solve this problem

% Define the initial point x0 and the size reduction parameter Delta x0 = [1 1]; Delta = [2 2];

% Set the tolerance epsilon epsilon = 0.001;

% Initialize the current best point x_bar to x0 x_bar = x0;

% Set the maximum number of iterations max_iter = 1000;

% Initialize the iteration counter iter = 0;

% Start the optimization loop while iter < max_iter % Check if the norm of Delta is greater than the tolerance if norm(Delta) <= epsilon % Return x_bar as the optimal solution break; end

    % Create a hypercube of 20 points around x_bar by adding and subtracting Delta
    x1 = x_bar - Delta;
    x2 = x_bar + Delta;
    hypercube = combvec(x1, x2)