#17190: Error in conversion from RR['x,y'] to RR['x']
-----------------------------------+----------------------------------
Reporter: defeo | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.4
Component: commutative algebra | Keywords: polynomials RR
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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Conversion of univariate polynomials from the bivariate ring `RR['x,y']`
fails:
```
sage: RR['x'](RR['x,y'].0)
---------------------------------------------------------------------------
ValueError Traceback (most recent call
last)
...
ValueError: max() arg is an empty sequence
```
This does not seem to affect other rings:
```
sage: QQ['x'](QQ['x,y'].0)
x
sage: CC['x'](CC['x,y'].0)
x
sage: RDF['x'](RDF['x,y'].0)
x
```
--
Ticket URL: <http://trac.sagemath.org/ticket/17190>
Sage <http://www.sagemath.org>
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