Xavier-François Roblot on 31 Aug 2002 19:10:10 +0200

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Re: interesting ROUND4 behavior

> I found 3 polynomials, namely polzagier(18,3), polzagier(34,3) and
> polzagier(42,11), that behave funny when I run factorpadic(pol,2,r).
> I run it at \g5 and grep for 'bound for resultant coeffs:'.
> Xavier, any idea why ROUND4 behaves like that?

Well, I do believe a bug explains this behavior. Indeed, taking


and looking at 


shows that the result of factorpadic is (very) wrong... I'll take a
closer look next week. Thanks for pointing out the problem.