On 11/27/2018 11:22 AM, 'Maxi Miller' via deal.II User Group wrote:
> Wouldn't that give me a vector instead of a (sparse) matrix which I need
> afterwards?
Yes, of course. But as I've mentioned before, the matrix that you update
with your formula is dense. You can't store it, and you can't
efficiently work with it.
Maybe you need to explain in more detail *what* it is you want to do.
Then one can think about *how* to do it.
Best
W.
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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