If we have a 4th order system,such as the one in snapshot,
how we can find its undamped natural frequency and damping ratio? Because on wikipedia ,i found case of 2nd order system and couldn't find case/scenario of fourth order system
apparently another question on EE SE has same subject
But the issue with this question is that it has no answer that is direct/simple and to the point as can be seen from the wording of those two answers ,they are containing a bit level of uncertainty, and the fact that OP hasn't accepted anyone of those two answers yet?