#19045: better subs method for matrices
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Reporter: vdelecroix | Owner:
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.9
Component: linear algebra | Resolution:
Keywords: | Merged in:
Authors: Vincent Delecroix | Reviewers: Nathann Cohen,
Report Upstream: N/A | Thierry Monteil
Branch: | Work issues:
u/vdelecroix/19045 | Commit:
Dependencies: | 59990af70ddf8f7de42d7c781b12248977eac664
| Stopgaps:
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Comment (by tmonteil):
Even worse:
{{{
sage: R.<x,y,z> = ZZ[]
sage: M = matrix([[x]])
sage: M.subs({x:1}).parent()
Full MatrixSpace of 1 by 1 dense matrices over Multivariate Polynomial
Ring in x, y, z over Integer Ring
sage: M.subs({x:RDF(1)}).parent()
Full MatrixSpace of 1 by 1 dense matrices over Real Double Field
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/19045#comment:10>
Sage <http://www.sagemath.org>
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