Opened 8 years ago
Last modified 5 years ago
#10765 needs_work task
Obliterate sage/matrix/misc.pyx
Reported by: | rbeezer | Owned by: | jason, was |
---|---|---|---|
Priority: | major | Milestone: | sage-6.4 |
Component: | linear algebra | Keywords: | |
Cc: | was, robertwb | Merged in: | |
Authors: | Rob Beezer | Reviewers: | |
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | Stopgaps: |
Description
Header of sage/matrix/misc.py
says:
NOTE: The whole problem of avoiding circular imports -- the reason for existence of this file -- is now a non-issue, since some bugs in Cython were fixed. Probably all this code should be moved into the relevant classes and this file deleted.
So I did. After a suitable deprecation period, the file can be obliterated. Here's the overview:
Functions leaving sage/matrix/misc.py
. Originals have all been deprecated.
cmp_pivots
Existing duplicate already existed inmatrix/matrix2.pyx
.
hadamard_row_bound_mpfr
Moved tomatrix/matrix2.pyx
near where it was called, right by another similar helper function. Converted to an underscore method, therefore. Already has protection on base ring of the matrix (RR).
matrix_integer_sparse_rational_reconstruction
Moved into content ofsage.matrix.matrix_integer_sparse.Matrix_integer_sparse.rational_reconstruction
which was just a one-line stub calling the function fromsage/matrix/misc.pyx
.
matrix_integer_dense_rational_reconstruction
Moved into content ofsage.matrix.matrix_integer_dense.Matrix_integer_dense.rational_reconstruction
which was just a one-line stub calling the function fromsage/matrix/misc.pyx
. Adjusted a call inmatrix_cyclo_dense
to call this new method.
matrix_rational_echelon_form_multimodular
"Works" for sparse and dense matrices (see MAX_MODULUS) so added this to matrix2.pyx class assage.matrix.matrix2.Matrix._echelon_form_multimodular_rational
. Added protection to ensure base ring is rationals.
Almost all code changes are just to fit into new locations. A bit of documentation clean-up where needed.
This passes all tests, but should be reviewed by somebody with significant Cython and/or sage/matrix
experience.
Attachments (1)
Change History (7)
Changed 8 years ago by
comment:1 Changed 8 years ago by
- Cc was robertwb added
- Status changed from new to needs_info
comment:2 Changed 8 years ago by
- Status changed from needs_info to needs_work
This will not apply on 4.7.alpha1, and will rot further after #10752 goes in, so I'm going to orphan it for now.
comment:3 Changed 6 years ago by
- Milestone changed from sage-5.11 to sage-5.12
comment:4 Changed 5 years ago by
- Milestone changed from sage-6.1 to sage-6.2
comment:5 Changed 5 years ago by
- Milestone changed from sage-6.2 to sage-6.3
comment:6 Changed 5 years ago by
- Milestone changed from sage-6.3 to sage-6.4
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Two questions for veterans of the matrix code:
_echelon_form_multimodular_rational
inmatrix2.py
be an underscore method (which is what was done)?misc.py
still has a stanza aboutmod_int
andMOD_INT_OVERFLOW
. I'm guessing it should follow the multimodular echelon form into the top ofmatrix2.pyx
but am not certain. Advice?