ufl team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Thu, Feb 19, 2009 at 02:01:33PM +0100, UFL wrote:
> One or more new changesets pushed to the primary ufl repository.
> A short summary of the last three changesets is included below.
> 
> changeset:   600:4ca6e769f21bc48cc6080b8c21d8e61131f12080
> tag:         tip
> user:        "Martin Sandve Alnæs <martinal@xxxxxxxxx>"
> date:        Thu Feb 19 14:02:19 2009 +0100
> files:       ufl/algorithms/forward_ad.py ufl/algorithms/transformations.py ufl/exproperators.py ufl/testobjects.py
> description:
> Bugfix.
> 
> There is some inconsistency in the handling of products
> of tensors, need to work it out before continuing on AD.
> Most likely I will make Product only capable of representing
> products of scalars, which reduces special cases.
> Different kinds of products of tensors will be represented
> by conversion to scalars through indexing, application
> of products on scalars, and conversion to tensors
> using ComponentTensor.

Sounds like a very good idea.

-- 
Anders


> 
> changeset:   599:8e40a63c1e53c596703414d6088cc567f9d640bd
> user:        "Martin Sandve Alnæs <martinal@xxxxxxxxx>"
> date:        Wed Feb 18 20:41:35 2009 +0100
> files:       test/test.py ufl/algorithms/forward_ad.py
> description:
> Bugfix.
> 
> 
> changeset:   598:464cd1e6e6f053abffb678fa7257f36520f7382e
> user:        "Martin Sandve Alnæs <martinal@xxxxxxxxx>"
> date:        Wed Feb 18 20:35:43 2009 +0100
> files:       ufl/algorithms/forward_ad.py
> description:
> Bugfix.
> 
> ----------------------------------------------------------------------
> For more details, visit http://www.fenics.org/hg/ufl

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