Stability Criteria for Transfer Function with Bode, Root Locus & Nyquist

[barneygumble742]

hi,

can anyone please help me with understanding the criteria for stability of a transfer function? especially with the bode plot, root locus, and nyquist.

i've gone through a few search results online and almost every site has different information that feels contradictory to me.

thanks,
bg742

 

[Danger]

Hi, Barney;
I can't help at all with your question, but I have a duty as a member of the language Police. 'Criteria' is the plural; 'criterion' is the singular.