Ticket #5468 (closed defect: fixed)
matrix creation over laurent polynomial rings
| Reported by: | wuthrich | Owned by: | malb |
|---|---|---|---|
| Priority: | major | Milestone: | sage-4.3.2 |
| Component: | commutative algebra | Keywords: | |
| Cc: | Work issues: | ||
| Report Upstream: | N/A | Reviewers: | |
| Authors: | Merged in: | ||
| Dependencies: | Stopgaps: |
Description
A.<Y> = QQ[] R.<X> = LaurentPolynomialRing(A) matrix(R,2,2,[X,0,0,1])
gives a
TypeError: Unable to coerce X (<type 'sage.rings.polynomial.laurent_polynomial.LaurentPolynomial_mpair'>) to Rational
The same problem occurs with LaurentSeriesRing, but not with PowerSeriesRing.
I have not tried to chase where the problem actually comes from.
Change History
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This is fixed by #3617