Hi,
Thank you for your quick answer!
Ok, that makes sense. I have a follow-up question. I will put it on
sage-devel as it is related to the implementation of a ticket.
Best,
JP
Le lundi 12 octobre 2015 22:21:12 UTC+2, vdelecroix a écrit :
>
> On 12/10/15 12:57, Nathann Cohen wrote:
> >> Is the following behavior normal:
> >
> > Well... In the first case you work on an exact ring, and in the second
> case
> > you compare the output of >= and > on an inexact ring.
> >
> > I do not know if there is something wrong somewhere, but I do not expect
> > float computations to be exact either, so I do not know...
>
> Yeap. This is exactly it. You have vertices over an inexact ring and
> equations over an inexact ring. You should not expect anything beyond
> the precision of the ring. Including subtle difference between < and <=.
>
> sage: 0.9 == 0.3 + 0.3 + 0.3
> False
> sage: 0.9 > 0.3 + 0.3 + 0.3
> True
>
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