#11603: Deprecate eigenspaces for matrices over RDF/CDF
------------------------------+---------------------------------------------
Reporter: rbeezer | Owner: jason, was
Type: enhancement | Status: positive_review
Priority: minor | Milestone: sage-5.0
Component: linear algebra | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author: Rob Beezer
Merged: | Dependencies:
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Changes (by ppurka):
* status: needs_review => positive_review
Old description:
> It is impossible to somehow reliably group eigenvectors of a numerical
> matrix into eigenspaces. Right now, we just put each eigenvector into an
> eigenspace of its very own. Rather than having this misleading output,
> the relevant functions are deprecated and users are pointed to the
> eigenmatrix routines, where they can deal with the eigenvectors as they
> see fit.
>
> This change was proposed at:
> http://groups.google.com/group/sage-
> devel/browse_thread/thread/c67266a5581abff9
New description:
It is impossible to somehow reliably group eigenvectors of a numerical
matrix into eigenspaces. Right now, we just put each eigenvector into an
eigenspace of its very own. Rather than having this misleading output,
the relevant functions are deprecated and users are pointed to the
eigenmatrix routines, where they can deal with the eigenvectors as they
see fit.
This change was proposed at:
http://groups.google.com/group/sage-
devel/browse_thread/thread/c67266a5581abff9
----
Apply [attachment:trac_11603-deprecate-numerical-eigenspaces.2.patch] to
devel/sage
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Comment:
Updated patch to sage-5.0. Passes doctests in `devel/sage/sage/matrix`.
So, positive review.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11603#comment:3>
Sage <http://www.sagemath.org>
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