Dear all,
In Sage 4.3, I came across the following problem when trying to coerce
rational numbers into the fraction field of Z[t].
sage: F = Frac(PolynomialRing(ZZ, 't'))
sage: F(1/2)
...
TypeError: no conversion of this rational to integer
I am guessing that this might be similar for fraction fields over
other polynomial rings with coefficient ring some principal ideal
domain rather than a field. I am not sure I know enough about the
coercion/ conversion system in Sage, although I'd be happy to help if
I can.
Sebastian
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