Re: Motion 6
On 2009-09-17 12:51:11 +0200, Arnold Neumaier wrote:
> For rigorous multiple precision calculations, a triplex representation
> is far superior in this respect, as - unlike a midrad representation -
> it degrades gracefully when the interval gets wide, and allows the
> representation of intervals like [1,inf], which the midrad
> representation doesn't.
This is slower. So I wouldn't say it is superior. In some applications
(probably in particular those that are best with midrad), degrading
gracefully is not necessarily useful. For instance, when the error no
longer remains small, the results could be regarded as meaningless,
and recomputing the results with more precision may be necessary.
--
Vincent Lefèvre <vincent@xxxxxxxxxx> - Web: <http://www.vinc17.org/>
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Work: CR INRIA - computer arithmetic / Arénaire project (LIP, ENS-Lyon)