Hello Mike
I just saw this site referenced today, they have a large list of other
sites:
http://www-128.ibm.com/developerworks/library/pa-bigiron1/?ca=dnt-65
Also look at the web site for Mike Cowlishaw who wrote software packages to
deal with Decimal Floating-Point. See also a Dr Dobbs for an article on this
with Java by Mike Cowlishaw and a joint author from Sun.
http://www2.hursley.ibm.com/mfcsumm.html
len
----- Original Message -----
From: "Arms, Mike" <[EMAIL PROTECTED]>
To: "Ed Chester" <[EMAIL PROTECTED]>;
<perl-win32-users@listserv.ActiveState.com>
Sent: Monday, July 25, 2005 3:39 PM
Subject: RE: comparing floating point numbers
Ed Chester <[EMAIL PROTECTED]> wrote:
just a warning to be careful of subtracting or dividing similar
numbers in
floating point and what your expectations are for the results. google
for
'catastrophic loss of precision' or similar, or check out the floating
point
standard (IEEE #754) for why these fall apart. *most* tests of
equality, or
relative size, in *most* architectures, map to subtractions by the
time they
get the processor. watch out.
Ed, a cursory look at the search results from Google produced a bunch
of items that specifically referred to the floating point Error in
the first batch of Pentium chips. As this has been corrected, are there
other occurrences of 'catastrophic loss of precision' that can be
tested using modern Pentiums (e.g. II - IV) or AMD chips? Some URLs
would
be helpful here. Thanks.
--
Mike Arms
_______________________________________________
Perl-Win32-Users mailing list
Perl-Win32-Users@listserv.ActiveState.com
To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs
_______________________________________________
Perl-Win32-Users mailing list
Perl-Win32-Users@listserv.ActiveState.com
To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs
