#5468: matrix creation over laurent polynomial rings
---------------------------------+------------------------------------------
Reporter: wuthrich | Owner: malb
Type: defect | Status: new
Priority: major | Milestone: sage-3.4.1
Component: commutative algebra | Keywords:
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{{{
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.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5468>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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