#8276: Make the one(), identity_matrix() and zero_matrix() cached and immutable.
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Reporter: hivert | Owner: hivert
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.3.3
Component: linear algebra | Keywords: One mutable.
Author: Florent Hivert | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Changes (by hivert):
* status: needs_work => needs_review
Comment:
At last thing should be OK ! Please apply in the following order:
{{{
trac_8276-MatrixSpace_one-fh.patch
trac_8276-fix_sagelib-fh.patch
trac_8276-fix_zero_matrix_creation-fh.patch
}}}
Depends on #8294
The first patch makes the matrices immutable, the second one fixes Sage's
lib accordingly the thirds patch simplifies and optimizes the creation of
the zero matrix.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8276#comment:8>
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