libadjoint team mailing list archive

[Patrick Farrell <patrick.farrell06@xxxxxxxxxxxxxx>]

On 10/06/12 12:25, Simon Funke wrote:
> To make a long story short, I think we can only compute gradients
> with respect to dicretised objects - and that is not the case for
> Constant/Expression objects.

Thinking about it some more, all objects in UFL are inherently
discretised -- right? If I write log(x), that's a pointwise map
from the function space X -> X. Even Expression classes implicitly
have an associated function space, I think (Marie?).

Patrick