OverflowError: math range error ???

[Shagshag13]

float..........................

"Shagshag13" <shagshag13 at yahoo.fr> a écrit dans le message de news:
ad8jv5$vb9es$1 at ID-146704.news.dfncis.de...
> So it's ok, i thing i should have work with real :o))))))))))
>
> >>> math.log(15996 / 25859)
> Traceback (most recent call last):
>   File "<pyshell#7>", line 1, in ?
>     math.log(15996 / 25859)
> OverflowError: math range error
> >>> math.log(15996.0 / 25859.0)
> -0.48032001185119749
>
>
> "Shagshag13" <shagshag13 at yahoo.fr> a écrit dans le message de news:
> ad8bkk$va3sb$1 at ID-146704.news.dfncis.de...
> >
> > What does it mean "OverflowError: math range error" ???
> >
> > I get this:
> >
> > Traceback (most recent call last):
> >   File "./build_index.py", line 91, in ?
> >     ii.updateWeight()
> >   File "./invertedindex.py", line 109, in updateWeight
> >     idf = ( math.log( (N + 1) / (df + 1) ) / math.log(2) + 1 )
> > OverflowError: math range error
> >
> > (ps: i am on Solaris, if this helps)
> >
> > thanks in advance,
> >
> > s13.
> >
> >
> >
>
>