On Fri, 20 Dec 2024 at 18:23, Andrew Nelson wrote:
> Wow, that would be a pretty serious optimization bug to override Kahan
>> summation. Are you speaking of some theoretical future version of the
>> interpreter, or of the current state of things?
>>
>
> I just wanted to know how the current inte
>
> Wow, that would be a pretty serious optimization bug to override Kahan
> summation. Are you speaking of some theoretical future version of the
> interpreter, or of the current state of things?
>
I just wanted to know how the current interpreter worked.
_
On Fri, Dec 20, 2024 at 4:48 AM Andrew Nelson via NumPy-Discussion
wrote:
>
> Or is there a risk that the Python interpreter would prematurely optimize
> that to give:
>
> ```
> dx = h
> ```
>
>
> --
> _
> Dr. Andrew Nelson
Wow, that would be a pretty seriou
Hi all,
Let's assume we have two float arrays, `x0` and `h`, both of which have the
same shape. Let's calculate the sum of those two arrays:
```
x1 = x0 + h
```
The true representable difference between `x1` and `x0` is:
```
dx = x1 - x0
```
Is it also possible to get that exact representation
