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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