On Tue, Feb 16, 2016 at 4:20 PM, Shayan Hoshyari <s.hoshy...@gmail.com>
wrote:

> Thanks for your answer. Is it possible to have cubic subparametric
> elements?
>

Not with Lagrange elements.

You can e.g. use a Hermite (cubic) basis with first-order (QUAD4, HEX8)
elements, but there are currently no cubic 'geometric interpolation'
functions in libmesh.

-- 
John
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