#17990: Matrix with Infinity
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Reporter: virmaux | Owner:
Type: defect | Status: needs_review
Priority: major | Milestone: sage-6.6
Component: calculus | Resolution:
Keywords: InfinityRing, | Merged in:
matrix, days64 | Reviewers:
Authors: | Work issues:
Report Upstream: N/A | Commit:
Branch: | 36263134d2c65c97ef3e57e8f0efa2e8ba0b52b9
u/virmaux/matrix_with_infinity | Stopgaps:
Dependencies: |
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Comment (by mmezzarobba):
Replying to [comment:11 tscrim]:
> > So then I guess you need something like an "Alexandroff extension
functor" that you could apply to a Parent to adjoin it an element at
infinity, don't you?
>
> If that means given an ordered set `S`, we can add an element `oo` such
that `x < oo` for all in `S`, then yes.
Well, the reference to Alexandroff extensions is not appropriate then, but
the idea would be the same.
In any case, let me ask again: is the following really what you want?
{{{
sage: matrix([[Infinity], [1]])
[ +Infinity]
[A positive finite number]
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/17990#comment:15>
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