[vos-d] Thought problem 2: physics 2

[chris]

On 2/3/07, chris <dragonmagi at gmail.com> wrote:
> On 2/3/07, Reed Hedges <reed at interreality.org> wrote:
> > chris wrote:
> > >> Of course... why not use a big integer for time?
> >
> > I would guess that lots of software does, especially since that's what
> > most operating systems give you (e.g. time_t).
> >
> > >
> > > A big integer at a fixed precision has larger relative error than a
> > > small one
> >
> > Why?
> because, although the resolution is even, the relative error = number/maxint.
oops that's not right - I was thinking in terms of how you calc error
for floating point :(
I need coffee ...

chris
>
> >
> >
> > Also, ODE doesn't use any randomness does it?
> Well it might - I posted questions to the relevant forum but got not reply.
> however, if I repeat the same experiment at, say the origin, the
> results are repeatable.
>
> chris
> >
> >
> > Reed
> >
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> >
>