#11558: Echelonize with transformation=True oddness for sparse matrix
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Reporter: vbraun | Owner: jason, was
Type: defect | Status: needs_info
Priority: major | Milestone: sage-4.7.2
Component: linear algebra | Keywords:
Work_issues: | Upstream: N/A
Reviewer: Rob Beezer | Author: Volker Braun
Merged: | Dependencies:
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Comment(by vbraun):
3. I think copying elementwise is necessary since the lhs and rhs matrices
have potentially different storage order. In particular for sparse
matrices, the echelon form is computed with dense matrices and then copied
back to a sparse matrix.
It seems like `hermite_form()` is supposed to be an alias for
`echelon_form()`. But sparse matrices don't have a `hermite_form()`
method? I'll update the patch to fix that and also your points 1 & 2.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11558#comment:2>
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