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[HG UFL] Preliminary implementation of IndexSum class along

To: ufl-dev@xxxxxxxxxx
From: ufl@xxxxxxxxxx (UFL)
Date: Tue, 20 Jan 2009 19:07:53 +0100 (CET)
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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:   513:123d2b3125667abec5213078d47e1b177da8025c
tag:         tip
user:        "Martin Sandve AlnÃ¦s <martinal@xxxxxxxxx>"
date:        Tue Jan 20 19:08:29 2009 +0100
files:       ufl/algebra.py ufl/expr.py ufl/newalgebra.py
description:
Preliminary implementation of IndexSum class along
with plans for rewrite if we decide to use this.


changeset:   512:a056b82fd13af182d657df49ff9e8d3b72eeb114
user:        "Martin Sandve AlnÃ¦s <martinal@xxxxxxxxx>"
date:        Mon Jan 19 22:53:16 2009 +0100
files:       ROADMAP sandbox/adtest.py ufl/algorithms/forward_ad.py
description:
Another attempt at bugfix for AD/indexing bug. Still no luck.


changeset:   511:4f13bcefd0aed36e9b04e938017f187c80206c55
user:        "Martin Sandve AlnÃ¦s <martinal@xxxxxxxxx>"
date:        Mon Jan 19 17:36:28 2009 +0100
files:       ufl/algorithms/forward_ad.py
description:
Added some debugging code and sketched an attempt at a solution.
The bug runs deeper than I thought and needs more careful consideration.

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