[Numpy-discussion] Floating Point Difference between numpy and numarray

Hanni Ali hanni.ali@gmail....
Tue Sep 9 02:59:21 CDT 2008


>
>
> I think it is a fallacy to say you prefer accuracy over speed: the
> fallacy is in thinking it is binary choice. You care about speed,
> because otherwise, you would not use a computer at all, you would do
> everything by hand [1]. Floating point is by itself an approximation: it
> can not even represent rational number accurately, let alone algebraic
> numbers or transcendent ones ! There are packages to do exact
> computation (look at sage for example for something based on python),
> but numpy/scipy are first numerical computation, meaning approximation
> along the way.
>

True perhaps I should have said consistency, rather than accuracy.

Cheers
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