Re: Bug#322534: ITP: mpfi -- multiple precision floating-point in terval computation

[Matthias Urlichs]

Hi,

Laurent Fousse:
 It is a library.

Then please say so in the description. The programming language it's for
might be nice to mention, too. ;-)

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Re: Bug#322534: ITP: mpfi -- multiple precision floating-point in terval computation

[Laurent Fousse]

Hi,

* Matthias Urlichs [Fri, Aug 12, 2005 at 05:31:35PM +0200]:
 Laurent Fousse:
  It is a library.
 
 Then please say so in the description. The programming language it's for
 might be nice to mention, too. ;-)

I will rephrase the description to make it appear more clearly. Thanks
for your suggestion.


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Re: Bug#322534: ITP: mpfi -- multiple precision floating-point in terval computation

[Laurent Fousse]

* Humberto Massa Guimarães [Thu, Aug 11, 2005 at 10:39:56AM -0300]:
 Yeah, but what does it *DO*? If it is a library, it oughta be called
 libmpfi ... and it should be stated.

It is a library. The source package is called `mpfi', the binary
package is called `libmpfi-dev' (only a static library is provided).
So with the package name, section (libdevel) and last paragraph of
description this will be fairly obvious it is a library. But I am open
to improvements to the description (maybe the first two paragraphs
could be made shorter, but on first glance I thought the concept of
interval arithmetics was worth explaining).

I chose the mpfi/libmpfi-dev naming convention as was done for mpfr,
see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=276085.


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RE: Bug#322534: ITP: mpfi -- multiple precision floating-point in terval computation

[Humberto Massa Guimarães]

 * Package name: mpfi
   Version : 1.3.3
   Upstream Authors: Nathalie Revol, Fabrice Rouillier (email ommited)
 * URL :
 http://perso.ens-lyon.fr/nathalie.revol/software.html
 * License : LGPL 2.1 or later
   Description : multiple precision floating-point interval
   computation
 
  The basic principle of interval arithmetic consists in enclosing
  every number by an interval containing it and being representable
  by machine numbers: for instance it can be stored as its lower
  and upper endpoints and these bounds are machine numbers, or as a
  centre and a radius which are machine numbers.
  .
  The arithmetic operations are extended for interval operands in
  such a way that the exact result of the operation belongs to the
  computed interval.
  .
  The purpose of an arbitrary precision interval arithmetic is on
  the one hand to get guaranteed results, thanks to interval
  computation, and on the other hand to obtain accurate results,
  thanks to multiple precision arithmetic. The MPFI library is
  built upon MPFR in order to benefit from the correct roundings
  provided by MPFR. Further advantages of using MPFR are its
  portability and compliance with the IEEE 754 standard for
  floating-point arithmetic. 
 
Yeah, but what does it *DO*? If it is a library, it oughta be called
libmpfi ... and it should be stated. If it is an utility program,
the what is arbitrary precision foo is secondary WRT what the
program actually does.


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