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Diagram: At each time step, combine the new input with a summary carried from the previous step.. Labels: Combine the current input and the previous state | Combine the current input and the previous state | The new state depends on both paths. | Previous state | h at time t − 1 | Current input | x at time t | Combine | Weighted sum + | bias | Activate | New state h at t | The same recurrent weight matrices are used again at the next time step.