Nyquist 2 - sketching from gain and phase information 

Nice video! It's the best video on the internet which explains how to plot nyquist from bode diagram.

If I had found you sooner I'd be killing it in control systems. It's a shame that, at university, these topics are taught often by researches who begrudgingly teach. By the end of the quarter, only about a third of the students in my control system class were even attending lectures anymore. Thank you for putting videos like this on RU-vid.

The best video on this topic by far and I am not joking. I swear you can't imagine how much stress and time I spent on trying to understand but only your videos have finally managed to help me. Bless you

thank you sir, as a French student it was clearer than the French videos!

Very good video. I think it illustrates very clearly how to obtain the Nyquist diagram from Bode and clarifies several things along the way. It is also very easy to follow, even for someone who is not a native English speakers like me.

Thank you, sir! Very helpful insights on a poorly taught topic.

seven years ago and this video is very helpful thanks you and I'll subscribe

Thank you for this explanation, exspecially for the guidline for quick sketches :)

very very useful and informative video. all my doubts and queries are cleared watching this vid! hatsoff to John Rossiter for this awesome explanation :)

One of the best videos I-ve ever seen! beautiful voice, very clear explination, very nice how you go from easy things to hard things and explain SO WELL EVERYTHING!! THANX

Not sure if you forgot to mention or if I missed it but the plot he derives you need to reflect that about the real axis for the full Nyquist plot. Super helpful though here ive been trying to figure it out through Nyquest criteria and that is painful to say the least when all you want to determine is regions of stability...

How can you calculate or estimate 6/4*sqrt(3) = 0.9 so quickly?

Perfect video

thank you very much ... the turorial was useful and understandable...

really, really helpful. I whis my teacher could exaplain like you do sir. Thank you!

Excelent! thanks!

thank you man you helped me so much

Saviour thank you!!

Thank you!

Thanks a lot

nice and helpful thanks

This has not been incredibly obvious for me from the start, but the gain and phase "arrows" are meant to be perpendicular to each other, right?

Great explanation, but please correct 6/square root(4*7) this instead of 4*12

it should be 6/square root(4*6) at 11:20, right ?

sorry if i don't see it, but how did you get sqr(4*12)?

Hello,sorry what is the method to get 2 at the y axis at the moment 10:00? Thank you very much!

I still do not know how to use the frequency while graphing?

Hello, At 10:43 how do you get so quickly at sqrt(3) as the middle? Regards, Olaf Thx for sharing these videos

where did you get the square root from in the calculations you do at 11:24?

i like this

belle perf