23 Apr
2003
23 Apr
'03
6:11 p.m.
Wamberto Vasconcelos escreveu:
Folks
One of my students drew my attention to the following unexpected result from CIAO:
?- X is 1926/100.
X = 19.2600000000000029 ?
Why is the "29" appearing at the end? Is this only happening in our current version?
The result is not "bizarre" but a consequence of the way floating point numbers are represented in computers.
The default number of digits chosen for the current version of Ciao (in our installation 1.8) lets us see the 'imprecision'. Probably there should be a means of reducing the number of figures to four or five where you would get a more 'expected' result.
HTH
--
Cesar Rabak
GNU/Linux User 52247.
Get counted: http://counter.li.org/
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