Update tnt.py

[jmv2009]

Add 1st order 0-Form elements
Add interval, triangle, tetrahedron, prism and pyramid for 0-Forms, modified from Cockburn & Fu
Modified the internal degrees of freedom using integration by parts to Laplacian.
Shifted order of curl for matching with 0-Forms in complex

• There appears to be a problem for 3rd order prism on the backend.

Todo:

• Hexahedron 1st
• Eliminate curl kernel of 3d elements (tetrahedron already works?)
• Pyramid (visualization is defelement issue)
• Hdiv
• DPC pyramid for inclusion in complex (serendipity type)

[jmv2009]

Complexes should now be virtually complete.
Lowest order may not always work yet.
Pyramid required DPC for highest forms (3-Forms), others discontinuous tensor product.

[mscroggs]

while you're developing, you probably want to add cache = False here to stop it locally caching the element matrices

[jmv2009]

Thanks! (commit some high order stuff pending).

[jmv2009]

Got all elements up to k=4 complex (lagrange=5).