#11490: Add a thematic tutorial on coercion and categories
---------------------------------------------------------+------------------
Reporter: SimonKing | Owner:
mvngu
Type: enhancement | Status:
needs_review
Priority: major | Milestone:
sage-5.7
Component: documentation | Resolution:
Keywords: categories coercion thematic tutorial | Work issues:
Report Upstream: N/A | Reviewers:
Vincent Delecroix, Travis Scrimshaw
Authors: Simon King | Merged in:
Dependencies: #14084 | Stopgaps:
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Changes (by dimpase):
* cc: vbraun (added)
Comment:
Replying to [comment:44 SimonKing]:
> By the way, it is a bit ironical:
> {{{
> sage: Q.gen()
> Traceback (most recent call last):
> ...
> RuntimeError: NewFrac(Univariate Polynomial Ring in x over Integer Ring)
still using old coercion framework
> }}}
>
> I think that this error is totally misleading. Clearly, the new coercion
model is used, is it not?
>
Does this mean that one has to change some code here to take care of
Volker's remark on
[http://permalink.gmane.org/gmane.comp.mathematics.sage.devel/64533 sage-
devel] ?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11490#comment:49>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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