Hi,
I tried a simple addition with python and I don't understand what is
going on:
$python 464.73+279. 78
744.50999999999 999
weird isn't it ? I use python2.3.
comments welcome
Mathieu
Jul 18 '05
11  1678 
Rainer Deyke wrote: Dan Bishop wrote:
Why not display the *exact* decimal representation,
"0.1000000000 000000055511151 231257827021181 583404541015625 "?
This has my vote. Unfortunately Python seems incapable of figuring out all
of those digits.
Python 2.3.2 (#49, Oct 2 2003, 20:02:00) [MSC v.1200 32 bit (Intel)] on
win32
Type "help", "copyright" , "credits" or "license" for more information.
'%.64f' % 0.1
'0.100000000000 000010000000000 000000000000000 000000000000000 0000000'
Python 2.3.3 seems to be able to do it on Red Hat Linux 9.0:
[rodh@rodh rodh]$ python
Python 2.3.3 (#1, Dec 20 2003, 17:47:13)
[GCC 3.2.2 20030222 (Red Hat Linux 3.2.2-5)] on linux2
Type "help", "copyright" , "credits" or "license" for more information. '%.64f' % 0.1
'0.100000000000 000005551115123 125782702118158 340454101562500 0000000'
Must be a M$ MSC problem.
--
Rod
>>>>> "Andrew Koenig" <ar*@acm.org> (AK) wrote:
AK> Many moons ago, Guy Steele proposed an elegant pair of rules for converting
AK> between decimal and internal floating-point, be it binary, decimal,
AK> hexadecimal, or something else entirely:
That was exactly what I was suggesting. I even included the bib reference.
--
Piet van Oostrum <pi**@cs.uu.n l>
URL: http://www.cs.uu.nl/~piet [PGP]
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