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[Garth Wells <question102501@xxxxxxxxxxxxxxxxxxxxx>]

Question #102501 on DOLFIN changed:
https://answers.launchpad.net/dolfin/+question/102501

Garth Wells proposed the following answer:
On Fri, 2010-02-26 at 13:06 +0000, Chris Richardson wrote:
> Question #102501 on DOLFIN changed:
> https://answers.launchpad.net/dolfin/+question/102501
> 
> Chris Richardson posted a new comment:
> Not really. I want k to be a variable, not an expression.
> 


Expressions can vary- you can make them a function of space, time, etc.
If you want something to be stored in a Vector, you can project it onto
a finite element space or interpolate it in a FE space. For example, if
you project onto a P0 (zeroth order) element, you'll have something
which varies cell-wise.

Garth

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