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One or more new changesets pushed to the primary ufl repository.
A short summary of the last three changesets is included below.

changeset:   308:5c0f0598a9c06777c745812dd3f1df84a6a75e3d
tag:         tip
user:        "Martin Sandve Alnæs <martinal@xxxxxxxxx>"
date:        Fri Oct 03 12:51:33 2008 +0200
files:       ufl/algorithms/checks.py
description:
Just a FIXME.


changeset:   307:859e6ffb26cc9a8ada230ca410a21c0baf55289b
user:        "Martin Sandve Alnæs <martinal@xxxxxxxxx>"
date:        Fri Oct 03 12:19:50 2008 +0200
files:       ufl/algorithms/ad.py ufl/algorithms/checks.py ufl/algorithms/predicates.py ufl/form.py ufl/integral.py
description:
Disabled assertion on is_multilinear in validate_form: it isn't correct in general.
Some fixes in differentiation functions.
Added negation of forms and integrals, so I can do:

f = ...*dx + ...*ds
F = derivative(f, u)
J = derivative(-F, u)

and assemble the Newton system directly from F,J.


changeset:   306:5f7a6f9c64c09f63962582d8eabdf7d3cc6d3d8a
user:        "Martin Sandve Alnæs <martinal@xxxxxxxxx>"
date:        Fri Oct 03 09:40:43 2008 +0200
files:       demo/H1norm.ufl demo/L2norm.ufl demo/convection_jacobi.ufl demo/convection_jacobi2.ufl demo/convection_vector.ufl demo/explicit_convection.ufl demo/hyperelasticity1D.ufl demo/mass.ufl demo/mixed_elasticity.ufl demo/mixed_poisson.ufl demo/pow_ad.ufl demo/source.ufl demo/stiffness.ufl ufl/algorithms/ad.py
description:
Added 1D hyperelasticity demo, useful for testing AD.

Added author and last changed date to demos.

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