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maple123

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Thanks very much, but I want to int(PDE)...

maple123 20
March 16 2021
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@Axel Vogt 

tanks very much for you help~

In  the total project I can't do this. such as:

restart;
alias(u = u(x, y));
int(diff(u, x)*diff(u, x) + diff(u, x, x)*u, x+diff(u, x)*diff(u, y) + diff(u, y, x)*u, x)+ diff(u, x, x)*u);

then, I want to get result as

UxU+UyU+int(Uxx,x).

So, how to int(PDE) is my question.

thanks again for your time hand help!

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