ufl team mailing list archive

[Martin Sandve Alnæs <martinal@xxxxxxxxx>]

There is no such operator, but it would make sense yes.

Just define it yourself for now with def diag(A), should be trivial to add
to ufl.

Martin
Den 3. nov. 2011 00.13 skrev "Johan Hake" <johan.hake@xxxxxxxxx> følgende:

> Hello!
>
> Is there an easy way to extract the diagonal of a square tensor in ufl? I
> know
> I can do:
>
>  diag = as_vector([A[0][0], A[1][1]])
>
> but it would make sense to have something like:
>
>  diag(A), A.diag()
>
> Johan
>
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