NameError: name 'nabla_grad' is not defined when running example

It could be some typing mistake. Change "nabla_grad" to "grad".

You should install FEniCS 1.0.0 which is available from the FEniCS PPA. Since Linux Mint is based on Ubuntu 11.04, I guess the packages from the PPA should work fine also on Linux Mint.

http://fenicsproject.org/download/ubuntu_details.html#ubuntu-ppa

nabla_grad WAP introdusere late 2011. You need fenics 1.0 for that script. In general it cannot be swapped with grad.

Martin

Den 2. jan. 2012 kl. 08:15 skrev Anmol Sarma <email address hidden>:

> New question #183498 on DOLFIN:
> https://answers.launchpad.net/dolfin/+question/183498
>
> I tried running d1_p2D.py example but got the following error:
>
> Traceback (most recent call last):
> File "d1_p2D.py", line 29, in <module>
> a = inner(nabla_grad(u), nabla_grad(v))*dx
> NameError: name 'nabla_grad' is not defined
>
> I'm running Linux Mint 11 ( Based on Ubuntu 11.04) and installed FEniCS 11.02-1 through apt-get.
> Any ideas?
>
>
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