Undergrad Getting zeros and poles for Laplace transform

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The discussion focuses on understanding the zeros and poles of a damped cosine function as presented in a video. There is confusion regarding the graphics shown at around 11:50, particularly the relationship between the probing function and the impulse response, questioning whether the probing function should be the inverse of the impulse response. Additionally, there is a concern about the representation of the D graphic, specifically that the complex part should be zero while the real part of the exponential should align with the poles. Clarification is sought on these points to enhance understanding of Laplace transforms. Feedback on these observations is welcomed for further insight.
bnich
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Getting zero's and poles for Laplace transform of damped cosine
I'm following the intuition behind getting the zero's and poles of a damped cosine function with this video


At around 11:50, he shows some graphics pertaining to multiplying the probing function with the impulse response, but the graphics don't seem correct.

For example, in the B+B' graphic, the probing function exactly equals the impulse response, but should the probing function be the inverse of the impulse response in order for the sum to be "just barely infinite" as depicted in the screenshot
laplace.png

Image source: http://www.dspguide.com/CH32.PDF

And for the D graphic, the complex part should be zero, but shouldn't the real part of the exponential be the same as where the poles are? Image below describes what I think it should be
Screenshot 2024-02-02 at 3.55.40 PM.png

image source: https://www.dummies.com/article/tec...s-understanding-poles-and-zeros-of-fs-166275/

Thanks for your time. I look forward to hearing some feedback!
 

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