Am 2016-09-20 um 20:22 schrieb Marc Mezzarobba:
> Clemens Heuberger wrote:
>> x = polygen(QQ)
>> equation = -96000*x^7 + 41600*x^6 - 6640*x^5 + 560*x^4
>> - 28*x^3 + 8400*x^2 - 140*x + 1 roots = equation.roots(QQbar)
>> a_root = roots[-1][0]
>> abs_root = abs(a_root)
> [...]
>>
Hi
Factoring first and then calculating the roots of the factors (you don't
need the multiplicity of the factor) worked fast for me...
Side note:
In AA I noticed that most operations become much faster after a
num.simplify(). But in this case the simplify operation is slow itself...
Best
Hi,
This thread would better be on ask.sagemath.org or sage-support.
Vincent
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Clemens Heuberger wrote:
> x = polygen(QQ)
> equation = -96000*x^7 + 41600*x^6 - 6640*x^5 + 560*x^4
> - 28*x^3 + 8400*x^2 - 140*x + 1 roots = equation.roots(QQbar)
> a_root = roots[-1][0]
> abs_root = abs(a_root)
[...]
> Is this expected behaviour?
Well, QQbar has a number of w
