Jeroen Demeyer on Tue, 20 Nov 2018 11:24:04 +0100

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Re: Please test pari-2.11.1 prerelease 1

This looks like a bug:

gp> rnf = rnfinit(nfinit(y^2 + 7), x);
gp> rnfeltreltoabs(rnf, x)
%2 = Mod(x, x^2 + 7)

In PARI-2.11.0, this returned Mod(0, x^2 + 7) which is the correct answer. It could also be that I'm misunderstanding something regarding the rnf functions...

In any case, various tests in SageMath are failing because of this change.