#13949: Make mutability on matrices a simple bint flag
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Reporter: nbruin | Owner: tbd
Type: PLEASE CHANGE | Status: new
Priority: major | Milestone: sage-5.6
Component: PLEASE CHANGE | Keywords:
Work issues: | Report Upstream: N/A
Reviewers: | Authors:
Merged in: | Dependencies:
Stopgaps: |
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Presently, proper initialization of a `Matrix` (inherited) object implies
the creation of a `Mutability` object, which needs a memory allocation of
its own. Since it's just a single flag, `Matrix` can just have this
without linking to a separate class. Hopefully this speeds up Matrix
creation sufficiently that `sage.matrix.matrix_integer_2x2` can afford to
just call it.
See [https://groups.google.com/group/sage-
devel/browse_thread/thread/acb447112595cc35?hl=en this sage-devel] thread.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13949>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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