# I run this but its given me issues. Can someone assist

```matlab % Step 1: Define variables and parameters eta = 1; % Initial value of eta epsilon = 1e-5; % Convergence condition L = 3; % L value

% Step 2: Loop for iteration eta_diff = []; % Store absolute difference between eta_n+1 and eta_n iteration = 0; % Initialize iteration counter

while true iteration = iteration + 1;

% Calculate values using the given equation omega = 1 / (iteration * (iteration + 1)); zeta = 1 / (iteration + 1); vartheta = 1 / (iteration + 1); psi_eta = eta / 2; A = L * eta; J = eta;

eta_next = vartheta * psi_eta + zeta * (eye(size(A)) - omega * A * J) * (eta + eta_next) / 2;

eta_diff = [eta_diff, abs(eta_next - eta)];

% Check for convergence if eta_diff(end) < epsilon break; end

eta = eta_next; end

% Step 3: Calculate convergence rate and plot iterations = 1:iteration; convergence_rate = eta_diff(2:end) ./ eta_diff(1:end-1);

figure; subplot(2,1,1); plot(iterations, eta_diff); xlabel('Number of Iterations'); ylabel('|\eta_{n+1} - \eta_n|'); title('Convergence Rate');

subplot(2,1,2); plot(iterations(2:end), convergence_rate); xlabel('Number of Iterations'); ylabel('Convergence Rate'); title('Convergence Rate');

% Print the number of iterations until convergence fprintf('Convergence achieved in %d iterations.\n', iteration); ```

##### 2 Comments

### Accepted Answer

##### 4 Comments

### More Answers (0)

### See Also

### Categories

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!