Apologies for possible double post, it seemingly locked up upon trying to post the first time.
So before I get as far as to ask for how to get a certain PDE system solved and plotted, I tried to fiddle a little bit around with linear algebra.
- First, the file SystemGoesWrong.mw . I have issues with declaring (same result if I remove the with(VectorCalculus)); as far as I can see, EQ0 and EQ00 should be the same, except that I have summed the vector in one of them. And the first that "works", is wrong: it returns a scaling of a vector. How come?
- But then I copy everything from the heading and down into a worksheet where I was already fighting some linear algebra things (can someone please explain?): SystemDeclaresBut.mw
Then EQ0 and EQ00 declare just fine! What is the issue?
- How do I get Maple to list the equations in "compact" form with vector-valued functions so that I can read and debug? The actual PDE system I want to solve (numerically, of course), looks as follows: DE4Maple.pdf
That was also the reason why I tried to declare procedures (coordinate-wise maximum ...), but I guess that questions on how to extract a solution and plot it in a particular way will be its own posting after I have learned how to declare it.
The contents of the first file:
... and of the second: