I have a question regarding symbolic manipulation of PDEs. I am attempting to use sympy to generate an implicit scheme for the heat equation. With the Crank-Nicolson time discretization I have:
[image: Inline image 1] Is there a way to isolate all occurrences of [image: Inline image 2] (along with its derivatves) to the lefthand side, as in: [image: Inline image 3] I would be very interested to know! Apparently it has something to do with the collect() function. Best, Jonathan -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/b9f4bac1-35e3-4b42-b525-f2ac70b241a3%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
