#9944: categories for polynomial rings
----------------------------------------------+-----------------------------
Reporter: robertwb | Owner: nthiery
Type: defect | Status: needs_info
Priority: major | Milestone: sage-4.7
Component: categories | Keywords:
Author: Robert Bradshaw | Upstream: N/A
Reviewer: Nicolas M. Thiéry, Mike Hansen | Merged:
Work_issues: |
----------------------------------------------+-----------------------------
Comment(by SimonKing):
And aparently the univariate polynomial rings are special in their choice
of a conversion from the base ring. Again with #9138
{{{
sage: R.<m> = ZZ[]
sage: R.convert_map_from(R.base_ring())
Polynomial base injection morphism:
From: Integer Ring
To: Univariate Polynomial Ring in m over Integer Ring
sage: R.<x,y> = QQ['t'][]
sage: R.convert_map_from(R.base_ring())
Generic morphism:
From: Univariate Polynomial Ring in t over Rational Field
To: Multivariate Polynomial Ring in x, y over Univariate Polynomial
Ring in t over Rational Field
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9944#comment:20>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en.
