Mar 12, 2014 Thread starter #1 D dwsmith Well-known member Feb 1, 2012 1,673 How do I find all the possible ROC for a transfer function written as \[ H(s) = \frac{(s - 2)^{n_1}}{(s + 2)^{n_2}(s + 1)^{n_3}(s - 1)^{n_4}} \] where \(n_i\in\mathbb{N}\).

How do I find all the possible ROC for a transfer function written as \[ H(s) = \frac{(s - 2)^{n_1}}{(s + 2)^{n_2}(s + 1)^{n_3}(s - 1)^{n_4}} \] where \(n_i\in\mathbb{N}\).