- From: Mike Cowlishaw <MFC@uk.ibm.com>
- Date: Thu, 15 Apr 2004 14:05:53 +0100
- To: Noah Mendelsohn <noah_mendelsohn@us.ibm.com>
- Cc: jcowan@reutershealth.com, www-xml-schema-comments@w3.org
John, just to add to Noah's e-mail: the current draft of the proposed
revision (754r) of the IEEE 754 standard is at:
http://754r.ucbtest.org/
The IEEE committee revising the standard has agreed that the very small
cost of preserving 'precision' in the sense the XML schema group use that
term is justified. Of course, the resulting data type may also be used
for implementing interval arithmetic -- indeed one of the major concerns
of the committee has been to ensure the mathematical soundness of the
proposal.
For background, see my paper "Decimal Floating-Point: Algorism for
Computers", available at:
http://www2.hursley.ibm.com/decimal/IEEE-cowlishaw-arith16.pdf
and also the FAQ, bibliography, etc., at the URL below.
Mike
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Mike Cowlishaw, IBM Fellow
IBM UK (MP5), PO Box 31, Birmingham Road, Warwick, CV34 5JL
mailto:mfc@uk.ibm.com -- http://www2.hursley.ibm.com/decimal
Received on Thursday, 15 April 2004 09:06:59 UTC