On Thu, Mar 14, 2024 at 8:17 PM Dima Pasechnik <dimp...@gmail.com> wrote:

>
>
> On Fri, Mar 15, 2024 at 12:15 AM Dima Pasechnik <dimp...@gmail.com> wrote:
>
>>
>>
>> On Thu, Mar 14, 2024 at 9:32 PM Dima Pasechnik <dimp...@gmail.com> wrote:
>>
>>>
>>>
>>> On 14 March 2024 21:09:22 GMT, Nils Bruin <nbr...@sfu.ca> wrote:
>>> >I get the impression that without setting ymin,ymax you just end up
>>> with a
>>> >tiny range for the y-axis and its labelling is just very weird. I think
>>> the
>>> >labels displayed are shifted and scaled. So the error is just how the
>>> >labels are printed. That looks the same as
>>> >https://github.com/sagemath/sage/issues/34233
>>> >
>>>
>>> Good catch! So it seems indeed the same story, just on the microscale.
>>> With the patch from #34233 I get essentially the same graph, but with extra
>>> 10^-9
>>> or something like this printed above the graph.
>>> So when x is very close to 0 one indeed sees this "sharp" drop, by 10^9
>>> or something...
>>>
>>> >The default behaviour would be to derive ymin and ymax from the sampled
>>> >points, and in your point plot example, those values vary from 1-1e-6
>>> to
>>> >1+0e-6. So I think the range is derived appropriately. The labels on
>>> the
>>> >y-axis are just printed in a misguided way.
>>>
>>
>> Attached in the plot with x in [-0.1,0.1] - and it is actually OK, I
>> think the minimum (with x=0) is where it should be, at 0.9999990...
>>
> I meant  0.9999990 x 10^-6, as indicated on the label.
>

That's good news, that it's just a matplotlib bug in the labeling of the
y-axis in the default case.

Thanks everyone!


>
> It's a bit  confusing that the y-axis is labelled this way, but the offset
>> of +1 is indicated at the
>> label above.
>>
>> Dima
>>
>>
>>> >
>>>
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