How to solve PDE via change of variables

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Thank you for showing the formation on ux, uy etc with the chain rule. Needed that clarification

TheBrickwall
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Nice video. It helps to shed some light on the topic. I have seen many approaches, but several of them do not look rigorous enough

CarlosPerez-ztql
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Love it. Would be really good if you could upload these in MP4. That way, they'll be HTML5 compatible and everyone could use the speed controls (useful for quick revision). Thanks!

izaakrs
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Hi - good question. So, if one of $a$ or $b$ is zero then do we really have a PDE to start with?

DrChrisTisdell
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it was very interesting. but I can't download it, can I get help for this and other videos Dr.?
with much respect.

tesfanehdebele
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How would you solve this problem if you had on the left side of the equation derivative in respect to x, y and z and also c*u, while the left side stays the same?

antejurcevic
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On slide 12 @8:11, the c(xi, eta) is missing as the coefficient of u. Right?

Rushikesh.Shende
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hey. during around 5:00, you said that you learned how to solve the xi equation in a previous video. Can i have the name of the video so i can look it up please? 

cwlvc