(j3.2006) Liaison to IFIP WG 2.5

[Lawrie Schonfelder]

I thought intervals were about accuracy critical not performance critical!

--
Lawrie Schonfelder
Wirral, UK 

> -----Original Message-----
> From: j3-bounces at j3-fortran.org [mailto:j3-bounces at j3-fortran.org]On
> Behalf Of Van Snyder
> Sent: 22 August 2007 19:52
> To: j3
> Subject: Re: (j3.2006) Liaison to IFIP WG 2.5
> 
> 
> On Wed, 2007-08-22 at 09:54 +0100, Lawrie Schonfelder wrote:
> > I think Van underlined what I was saying about intervals. A few
> > critical algorithms would benefit from efficient evaluation via
> > interval techniques. However, these are specialised and it would be
> > highly undesirable for whole applications to be written to use
> > intervals instead of FP. It would be desirable for hardware and
> > languages to provide the primitives necessary to enable critical
> > algorithms to be programmed using intervals but a whole intrinsic type
> > is not justified. By all means establish a formal liaison with WG2.5.
> 
> It's hard to imagine how the critical algorithms can be written to use
> intervals if they're not based on an intrinsic type, while preserving
> the performance that defines them as "critical algorithms."
> 
> -- 
> Van Snyder                    |  What fraction of Americans believe 
> Van.Snyder at jpl.nasa.gov       |  Wrestling is real and NASA is fake?
> Any alleged opinions are my own and have not been approved or
> disapproved by JPL, CalTech, NASA, the President, or anybody else.
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