Jacob matrix
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Great444
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#1
Why my answer is not matching with the answer ,where did I go wrong, I calculated the tr and det , I followed the lecture notes too
Last edited by Great444; 7 months ago
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mqb2766
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#2
You should be able to spot the typos?
The "ad" term is positive (two negatives) so the factor will cancel.
The trace is the sum of the diagonal elements. If your notes say otherwise ...
Note
https://www.wolframalpha.com/input/?...5Ba%2C-b%5D%5D
may be worth using to check your working.
The "ad" term is positive (two negatives) so the factor will cancel.
The trace is the sum of the diagonal elements. If your notes say otherwise ...
Note
https://www.wolframalpha.com/input/?...5Ba%2C-b%5D%5D
may be worth using to check your working.
Last edited by mqb2766; 7 months ago
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#3
(Original post by Great444)
Why my answer is not matching with the answer ,where did I go wrong, I calculated the tr and det , I followed the lecture notes too
Why my answer is not matching with the answer ,where did I go wrong, I calculated the tr and det , I followed the lecture notes too
Last edited by mqb2766; 7 months ago
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#5
(Original post by mqb2766)
Can you upload your notes page before as well so the problem is clearly defined. Not sure your lecture notes are correct either.
Can you upload your notes page before as well so the problem is clearly defined. Not sure your lecture notes are correct either.
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#6
(Original post by Great444)
Thanks I attached them.
Thanks I attached them.
Last edited by mqb2766; 7 months ago
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#7
(Original post by Great444)
I tried to do the calculation but I'm not getting the same answer as what I've sent in the first attachment
I tried to do the calculation but I'm not getting the same answer as what I've sent in the first attachment
Can you post the full question regarding this jacobian.
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Great444
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#8
(Original post by mqb2766)
I know. It looks like both you and your notes are wrong.
Can you post the full question regarding this jacobian.
I know. It looks like both you and your notes are wrong.
Can you post the full question regarding this jacobian.
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Great444
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#9
Now for this question which no way am getting the same answer as this I will attach it, but not sure where am going wrong .
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#10
(Original post by Great444)
Now for this question which no way am getting the same answer as this I will attach it, but not sure where am going wrong .
Now for this question which no way am getting the same answer as this I will attach it, but not sure where am going wrong .
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#11
(Original post by mqb2766)
From a very quick look, starting with the nondimensional equations, I agree with the Jacobian in the notes, but the det and tr are not correct. The correct values are in the wolframalpha link I posted earlier.
From a very quick look, starting with the nondimensional equations, I agree with the Jacobian in the notes, but the det and tr are not correct. The correct values are in the wolframalpha link I posted earlier.
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#12
(Original post by Great444)
This is a different question
This is a different question
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#13
(Original post by mqb2766)
Just for completeness, Im ignoring this, unless you have a query about it.
Just for completeness, Im ignoring this, unless you have a query about it.
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