#807: construction of function fields
------------------------------------+---------------------------------------
Reporter: nbruin | Owner: somebody
Type: defect | Status: new
Priority: major | Milestone: sage-5.8
Component: basic arithmetic | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
------------------------------------+---------------------------------------
Comment (by cremona):
Replying to [comment:9 tscrim]:
>
> In some ways, I'd almost like the following to throw an error:
> {{{
> sage: R.<x> = QQ['t']
> sage: x
> t
> }}}
> since the variable names don't match. But that might just be me...
No, not just you. And you probably also dislike this, as I do:
{{{
sage: y = polygen(QQ)
sage: y
x
}}}
This would be avoided by disallowing polygen()'s name parameter being
omitted (it defaults to "x"). After all we are not allowed to construct
number fields, or non-prime finite fields, without naming a generator, and
this is worse since we usually think that we have named a generator...
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/807#comment:10>
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 unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac?hl=en.
For more options, visit https://groups.google.com/groups/opt_out.
