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[HG UFL] Added class NewVariable and Label, planning to replace existing Variable.

To: ufl-dev@xxxxxxxxxx
From: ufl@xxxxxxxxxx (UFL)
Date: Fri, 2 Jan 2009 18:37:18 +0100 (CET)
Delivered-to: ufl-dev@xxxxxxxxxx

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

changeset:   464:ac4a2900947cb8dc705fa0809a23002a8377f091
tag:         tip
user:        "Martin Sandve AlnÃ¦s <martinal@xxxxxxxxx>"
date:        Fri Jan 02 14:33:29 2009 +0100
files:       ufl/algorithms/analysis.py ufl/algorithms/dependencies.py ufl/classes.py ufl/variable2.py
description:
Added class NewVariable and Label, planning to replace existing Variable.

Unlike Variable, NewVariable is not a Terminal, meaning the subexpression
is an operand and can be handled in algorithms like other general operands.

It is also not a Counted, but has a second operand of the type Label
which is both a Terminal and Counted.


changeset:   463:a0515c7f29ff3f9f4c456fe37b1a822182823755
user:        "Martin Sandve AlnÃ¦s <martinal@xxxxxxxxx>"
date:        Tue Dec 30 21:37:19 2008 +0100
files:       sandbox/lhstest.py ufl/algorithms/formtransformations.py ufl/algorithms/transformations.py ufl/basisfunction.py ufl/formoperators.py ufl/function.py
description:
Implemented lhs and rhs, works for basic "a = u*v*dx + f*v*ds",
needs verification and testing for more complicated stuff
and probably some more operators handled.


changeset:   462:fae02b8aefc08cb52b02412584096297161d3ef0
user:        "Martin Sandve AlnÃ¦s <martinal@xxxxxxxxx>"
date:        Tue Dec 30 20:37:21 2008 +0100
files:       ufl/classes.py ufl/form.py ufl/formoperators.py
description:
Some work on derivative function.

Disabled _metadata in Form, this breaks the
immutable property which is very important.
Need a very good reason to re-enable it!

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