major release.
</p>
- <li> <p>
- <strong>Non-conforming elements:</strong> While
- <acronym>deal.II</acronym> is quite flexible with respect to
- the finite element to be used, it was written with Lagrange
- elements in mind. The basic problems in the implementation of
- other elements would therefore be the computation of shape
- function values if the shape functions depend on the shape of
- the cell. Since this is not the case for the usual continuous
- elements, the present implementation does not provide all
- information necessary for the computation of these values.
- </p>
-
- <p>
- In order to implement these elements, it would therefore be
- necessary to review the interface between the
- <code>FEValues</code> class and the
- <code>FiniteElement</code> class. This would probably also be
- the right time to further separate the implementation of the
- mapping from unit to real cell from the actual finite element
- code.
- </p>
-
<li> <p>
<strong>The <I>hp</I>-method of finite elements:</strong>
Implementing this will need a class analogous to the