On the superiority of Disk Margin analysis

This submission illustrates how the Disk Margin analysis could be beneficial comparing to the classic stability analysis method.

Rookie engineers / novice students usually at the beginning use Bode and Nyquist plots to define and/or inverstigate stability of the system. This may be perfectly adequate for simple systems, but some doubts and challenges arise with the analysis of more complex systems, especially if MIMO systems are considered.

This submission shows why the disk margin analysis is more comprehensive and gives us more reliable information.