#11553: Matrix morphism additions
------------------------------+---------------------------------------------
Reporter: rbeezer | Owner: jason, was
Type: enhancement | Status: positive_review
Priority: minor | Milestone: sage-4.7.2
Component: linear algebra | Keywords: sd32 bijective identity inverse
Work_issues: | Upstream: N/A
Reviewer: Martin Raum | Author: Rob Beezer
Merged: | Dependencies: #11552, #10793
------------------------------+---------------------------------------------
Old description:
> Adds three methods to the matrix morphism class:
>
> 1. {{{is_bijective()}}}
> 1. {{{is_identity()}}}
> 1. {{{inverse()}}}
>
> I did not notice that {{{__invert__}}} via ~ was available by using tab-
> completion, which should explain the last one.
>
> If there is a theme, it is better support for compositions of these
> morphisms.
>
> '''Depends'''
> 1. #11552
>
> '''Apply:'''
> 1. [attachment:trac_11553-matrix-morphisms-additions-v4.patch]
> 2. [attachment:trac-11553-matrix-morphisms-additions-review.patch]
> 3. [attachment:trac_11553-matrix-morphisms-doctests.patch]
New description:
Adds three methods to the matrix morphism class:
1. {{{is_bijective()}}}
1. {{{is_identity()}}}
1. {{{inverse()}}}
I did not notice that {{{__invert__}}} via ~ was available by using tab-
completion, which should explain the last one.
If there is a theme, it is better support for compositions of these
morphisms.
'''Depends'''
1. #11552
'''Apply:'''
1. [attachment:trac_11553-matrix-morphisms-additions-v4.patch]
2. [attachment:trac-11553-matrix-morphisms-additions-review-v2.patch]
3. [attachment:trac_11553-matrix-morphisms-doctests.patch]
--
Comment(by rbeezer):
"review-v2" patch is a trivial rebase to eliminate a fuzz warning. I'm
going to presume this does not need a change in review status.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11553#comment:14>
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