#4932: fix solve_left_LU for matrix_double_dense, which was totally broken
forever
(?)
------------------------------+---------------------------------------------
Reporter: was | Owner: jason
Type: defect | Status: needs_info
Priority: major | Milestone: sage-4.6.2
Component: linear algebra | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Changes (by rbeezer):
* status: needs_work => needs_info
Comment:
It appears "straight" LU decomposition in `SciPy/NumPy` will accept non-
square matrices as input, while the LU-factor routine still requires
square input.
Do we want to try to support non-square systems with the straight LU
decomposition? It would mean foregoing the built-in solve routine that
extens the LU-factor decomposition, and possibly a decision would have to
be made about what to cache: square (very compact) or non-square (more
general).
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4932#comment:9>
Sage <http://www.sagemath.org>
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