Region of Convergence-Crossword Puzzle

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Across
  1. 2. In a two-sided Z-transform, the ROC is bounded by two ______.
  2. 4. If the ROC contains the unit circle, the system is ______.
  3. 7. For an anti-causal system, the ROC extends ______ from the innermost pole.
  4. 8. The boundary of the ROC is determined by the ______ of the poles.
  5. 10. The ROC is always a ______ region in the Z-plane.
Down
  1. 1. The Z-transform is used in analyzing ______ systems.
  2. 3. In a causal system, the ROC extends ______ from the outermost pole.
  3. 5. The ROC is always related to the ______ of the poles in the Z-plane.
  4. 6. For a stable system, the ROC must include the ______ circle.
  5. 9. The ROC must not enclose any ______ of the system for stability.