Not a bug. None of these numbers are exactly representable in binary, so
you can't expect accuracy of better than machine epsilon.
Please don't report things that aren't bugs to r-bugs.
-thomas
On Fri, 8 Aug 2008, [EMAIL PROTECTED] wrote:
Full_Name: Tom Wang
Version: 2.6.2
OS: Li
On Fri, Aug 8, 2008 at 7:30 AM, <[EMAIL PROTECTED]> wrote:
> Full_Name: Tom Wang
> Version: 2.6.2
> OS: Linux, Windows
> Submission from: (NULL) (61.230.6.228)
>
>
> I've found an instance:
>
> > a <- c(0.187,-0.019,0.074,-0.06,0.221,-0.079,0.12,0.079,-0.281,-0.242)
> > sum(a)
> [1] -2.428613e-17
Full_Name: Tom Wang
Version: 2.6.2
OS: Linux, Windows
Submission from: (NULL) (61.230.6.228)
I've found an instance:
> a <- c(0.187,-0.019,0.074,-0.06,0.221,-0.079,0.12,0.079,-0.281,-0.242)
> sum(a)
[1] -2.428613e-17
The actual sum is 0 but it reports the wrong answer.
Maybe it is due to the c
