Numerical representation

Santoso Wijaya santoso.wijaya at gmail.com
Fri Mar 4 18:49:04 EST 2011


Have you taken a look at numpy? [1] It was written for exactly this kind of
usage.

~/santa

[1] http://numpy.scipy.org/


On Fri, Mar 4, 2011 at 2:32 PM, Jon Herman <jfc.herman at gmail.com> wrote:

> Hello all,
>
> I am new to the Python language and writing a Runge-Kutta-Fellberg 7(8)
> integrator in Python, which requires an extreme numerical precision for my
> particular application. Unfortunately, I can not seem to attain it.
> The interesting part is if I take my exact code and translate it to Matlab
> code (so I use the exact same process and numbers), I get a far superior
> precision (the one I am expecting, in fact). This leads me to think I need
> to call a certain command in my Python script in order to make sure no
> truncation errors are building up over my integration.
>
> Has anyone had similar problems? Is there a difference between how Matlab
> and Python store numbers, and if so how do I make Python more accurate?
>
> I know there is a lot of packages out there, but this in fact overwhelmed
> me a little bit and seems to prevent me from finding the answer to my
> question, so I'm hoping someone with more experience will be able to
> enlighten me!
>
> Best regards,
>
> Jon
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
>
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