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[Marie Rognes <meg@xxxxxxxxxxx>]

After diving into some non-linear elasticity, I've suddenly the need to 
do u^k, that is u to the power k, where u is some Function and k is an 
arbitrary natural number.

Is there a good way of doing this with ffc?

... and are there any immediate plans for making the NonLinearPDE work 
in PyDOLFIN?

--
Marie E. Rognes
Ph.D Fellow, 
Centre of Mathematics for Applications, 
University of Oslo
http://folk.uio.no/meg