#9788: The coordinates appearing in the output of variety(L) should be easier to
access
-----------------------------------+----------------------------------------
Reporter: mmezzarobba | Owner: malb
Type: enhancement | Status: new
Priority: minor | Milestone: sage-4.5.3
Component: commutative algebra | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
-----------------------------------+----------------------------------------
When computing the variety over an extension field L of a zero-dimensional
ideal of some polynomial ring K[vars], each point of the variety is
returned as a dictionary whose keys are generators of L[vars]. It would be
more practical to have the keys be either generators of K[vars] or plain
strings.
{{{
sage: R.<x,y> = QQ[]
sage: J = (x+y, x^2+y^2-1)*R
sage: V = J.variety(QQbar); V
[{y: -0.7071067811865475?, x: 0.7071067811865475?}, {y:
0.7071067811865475?, x: -0.7071067811865475?}]
sage: V[0][x]
---------------------------------------------------------------------------
KeyError Traceback (most recent call
last)
/data/sage-4.5.1/<ipython console> in <module>()
KeyError: x
sage: V[0]['x']
---------------------------------------------------------------------------
KeyError Traceback (most recent call
last)
/data/sage-4.5.1/<ipython console> in <module>()
KeyError: 'x'
sage: V[0][QQbar['x,y'].0]
0.7071067811865475?
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9788>
Sage <http://www.sagemath.org>
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