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[HG UFL] Improved safe automatic expression-level simplification in Sum.

To: ufl-dev@xxxxxxxxxx
From: ufl@xxxxxxxxxx (UFL)
Date: Mon, 3 Nov 2008 16:05:15 +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:   398:098cb7dcaa2171bddc17f7fdf2606f19435d32ce
tag:         tip
user:        "Martin Sandve AlnÃ¦s <martinal@xxxxxxxxx>"
date:        Mon Nov 03 16:05:28 2008 +0100
files:       test/elements.py test/simplify.py ufl/algebra.py
description:
Improved safe automatic expression-level simplification in Sum.
Needs to be employed in other commuting operations as well for full effect.


changeset:   397:5560f541cf0895c193a2c086c6846feeb2e90e55
user:        "Martin Sandve AlnÃ¦s <martinal@xxxxxxxxx>"
date:        Mon Nov 03 15:40:15 2008 +0100
files:       ufl/zero.py
description:
Added missing file.


changeset:   396:5e431d0474faab70d1a2ed15f239f1ed5f234b51
user:        "Martin Sandve AlnÃ¦s <martinal@xxxxxxxxx>"
date:        Mon Nov 03 10:50:08 2008 +0100
files:       ROADMAP ufl/algebra.py
description:
Attempt at collapsing "foo + foo" into "2*foo".
Commented out because I can't test it since I
forgot to check in zero.py at home...

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