(j3.2006) Liaison to IFIP WG 2.5
Sun Aug 26 10:31:32 EDT 2007
Van Snyder wrote:
> IFIP WG 2.5 are very interested in interval arithmetic.
In 1992 I followed one of the initial courses in Numerical Meteorology,
given by the European Centre of Medium Range Weather Forecasts.
Because I had received Arnold Neumaier's " Interval methods for systems
of equations" as a gift when leaving SARA (http://www.sara.nl), I asked
(the then director of ECMWF) Dr. Dave Burridge about his opinion on
His answer: We have better (meteorological based) limits on the extremes
of our forecasts.
This has been formalized in the mean time by ensemble forecasts
It is my professional opinion that - unless we want to restrict Fortran
to purely mathematical computation - that (almost) every physics (or
other science) subject that uses mathematics as its language of choice,
has better ways of abstracting its uncertainty than interval arithmetic.
Toon Moene - e-mail: toon at moene.indiv.nluug.nl - phone: +31 346 214290
Saturnushof 14, 3738 XG Maartensdijk, The Netherlands
At home: http://moene.indiv.nluug.nl/~toon/
GNU Fortran's path to Fortran 2003: http://gcc.gnu.org/wiki/Fortran2003
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