id summary reporter owner description type status priority milestone component resolution keywords cc merged author reviewer upstream work_issues branch commit dependencies stopgaps
1863 [with patch, positive review] implement f.change_ring(R) for f a multivariate polynomial was malb "This works:
{{{
sage: R. = QQ[]
sage: f = x^3 + 3/5
sage: f.change_ring(GF(7))
x^3 + 2
}}}
This should work:
{{{
sage: R. = QQ[]
sage: f = x^3 + 3/5*y + 1
sage: f.change_ring(GF(7))
Traceback (most recent call last):
...
AttributeError: 'sage.rings.polynomial.multi_polynomial_libsingular' object has no attribute 'change_ring'
}}}" enhancement closed major sage-3.0 commutative algebra fixed