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> > No... such a build up of errors is highly unlikely. The more likely
> > circumstance is that errors offset one another. Some add and some
subtract
> > and you end up about where you would have been anyway.
>
> Not true. As someone has already responded, go take an introductory
> course in numerical analysis at your local community college.
>
Yes, true. Show me otherwise. Again, I do not refer here to any built-in
EL functions, merely to the representation of numbers using single
precision. The fact that numbers are represented as single precision has
absolutely nothing to do with whether errors will accumulate or not.
>
>
> Also in this thread, the Jackal <tradejacker@xxxxxxxxx> re-posted an
> old message by Bob Fulks, which in part was:
>
> > As a very simple example, the "Average" function supplied with
> > TradeStation calculates the average by subtracting the old bar
> > and adding the new bar:
> >
> > Sum = Sum[1] + Price - Price[Length]
> >
I hate to repeat myself, but I do not dispute that this is not a good way to
average things... But this function implementation has absolutely nothing
to do with the precision question.
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