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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:   876:794606b8a306f0e2f8e6c3d9369fd72778d8032d
tag:         tip
user:        "Martin Sandve Alnæs <martinal@xxxxxxxxx>"
date:        Wed Apr 29 23:09:38 2009 +0200
files:       ufl/algorithms/ad.py
description:
Implemented simpler alternative variant of apply_ad
(working on how to explain the AD implementation...).


changeset:   875:bb08950456d5bbed99a704541449261a8eddf924
user:        "Martin Sandve Alnæs <martinal@xxxxxxxxx>"
date:        Mon Apr 27 14:01:03 2009 +0200
files:       ufl/__init__.py ufl/algorithms/analysis.py ufl/algorithms/forward_ad.py ufl/algorithms/transformations.py ufl/algorithms/ufl2latex.py ufl/classes.py ufl/differentiation.py ufl/operators.py
description:
Removed Rot class, set rot=curl, added curl: R2->R and curl: R->R2.


changeset:   874:58960c105100a78590767159fc21846559140ccb
user:        "Martin Sandve Alnæs <martinal@xxxxxxxxx>"
date:        Mon Apr 27 12:01:31 2009 +0200
files:       sandbox/algorithmtests/simplification_fail.py
description:
Added example script of expression that would be nice if we could simplify.
(Not fixing it now, it's complicated!).

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For more details, visit http://www.fenics.org/hg/ufl