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Routh-Hurwitz Stability Criterion
#31
RE: Routh-Hurwitz Stability Criterion
(April 29, 2023 at 5:33 pm)BrianSoddingBoru4 Wrote:
(April 29, 2023 at 5:30 pm)FlatAssembler Wrote: In case you are interested in how this reversing the polynomial trick that has been explained to me on forum.hr works, here is a simple explanation: https://math.stackexchange.com/a/4689107/791819

I’m not.

Boru

Well, it has to do with complicated numbers. It's really difficult and boring.
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#32
RE: Routh-Hurwitz Stability Criterion
(April 30, 2023 at 2:20 pm)FlatAssembler Wrote:
(April 29, 2023 at 5:33 pm)BrianSoddingBoru4 Wrote: I’m not.

Boru

Well, it has to do with complicated numbers. It's really difficult and boring.

If I ever feel the need to reverse a polynomial, I’ll look into it.

Boru
‘But it does me no injury for my neighbour to say there are twenty gods or no gods. It neither picks my pocket nor breaks my leg.’ - Thomas Jefferson
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#33
RE: Routh-Hurwitz Stability Criterion
(April 30, 2023 at 6:20 pm)BrianSoddingBoru4 Wrote:
(April 30, 2023 at 2:20 pm)FlatAssembler Wrote: Well, it has to do with complicated numbers. It's really difficult and boring.

If I ever feel the need to reverse a polynomial, I’ll look into it.

Boru

Well, you need to reverse the polynomial s^5 + 2*s^4 + 3*s^3 + 6*s^2 + 2*s + 1 in order to apply the Hurwitz'es Criterion to it. That's why I used it as the example in my improved Hurwitz'es Criterion implementation.
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#34
RE: Routh-Hurwitz Stability Criterion
(May 2, 2023 at 3:15 pm)FlatAssembler Wrote:
(April 30, 2023 at 6:20 pm)BrianSoddingBoru4 Wrote: If I ever feel the need to reverse a polynomial, I’ll look into it.

Boru

Well, you need to reverse the polynomial s^5 + 2*s^4 + 3*s^3 + 6*s^2 + 2*s + 1 in order to apply the Hurwitz'es Criterion to it. That's why I used it as the example in my improved Hurwitz'es Criterion implementation.

I really don’t think I need to do that.

Boru
‘But it does me no injury for my neighbour to say there are twenty gods or no gods. It neither picks my pocket nor breaks my leg.’ - Thomas Jefferson
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#35
RE: Routh-Hurwitz Stability Criterion
(May 3, 2023 at 6:54 am)BrianSoddingBoru4 Wrote:
(May 2, 2023 at 3:15 pm)FlatAssembler Wrote: Well, you need to reverse the polynomial s^5 + 2*s^4 + 3*s^3 + 6*s^2 + 2*s + 1 in order to apply the Hurwitz'es Criterion to it. That's why I used it as the example in my improved Hurwitz'es Criterion implementation.

I really don’t think I need to do that.

Boru

Sure, you can do the modified Hurwitz'es algorithm using limits, but that's way more complicated.
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#36
RE: Routh-Hurwitz Stability Criterion
(May 3, 2023 at 7:59 am)FlatAssembler Wrote:
(May 3, 2023 at 6:54 am)BrianSoddingBoru4 Wrote: I really don’t think I need to do that.

Boru

Sure, you can do the modified Hurwitz'es algorithm using limits, but that's way more complicated.

No, I can’t.

Why do you persist in telling me what I need to/can do?

Boru
‘But it does me no injury for my neighbour to say there are twenty gods or no gods. It neither picks my pocket nor breaks my leg.’ - Thomas Jefferson
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