I did not miss it (but forgot it when I copied it in my e-mail). You
have cancellations in approximate rings:
sage: (1e60 - 1) - 1e60
0.000000000000000
sage: _.is_zero()
True
And you can check that this number is larger than -1e-6 if you wish. It
will still be wrong.
Vincent
On 13/10/15 10:30, Jan Keitel wrote:
Hi Vincent,
you were missing the crucial minus in the code: Instead of checking that
x>1e-6, it is checking whether x>-1e-6.
Am Dienstag, 13. Oktober 2015 15:07:04 UTC+2 schrieb vdelecroix:
Hi,
> I don't know what you're checking, but the code in base_RDF.py says
The point
(.5*v0 + .5*v1) - 1e-7*v2
is definitely not in the regular pentagon. But Sage answers that it is.
If you start taking barycenters, this is the kind of things you can run
into.
>> On 13/10/15 08:30, Jan Keitel wrote:
>>> that's actually not true, have you checked it?
>>> The code
What was actually not true in my initial statement?
Vincent
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