MathGroup Archive 2008

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Expressions with ellipsis (...)


On Oct 24, 6:31 am, Szabolcs Horvat <szhor... at gmail.com> wrote:
> dch888 wrote:
> > Hi Mathematica Friends,
>
> > I want to do this:
>
> > Limit[(n^2 + (n - 1)^2 + (n - 2)^2 + ... + 1)/n^3, n -> Infinity]
>
> > But Mathematica barfs:
>
> >      expression cannot be followed by "...".
>
> > Searching the help for 'ellipsis' gives me the Unicode 2026 character
> > (i.e. ...).
>
> > How can I get Mathematica to eval this limit?
>
> Limit[Sum[k^2, {k, 1, n}]/n^3, n -> Infinity]

Superb.  Many thanks.


  • Prev by Date: Re: Graph by Date
  • Next by Date: Re: Exporting to DXF
  • Previous by thread: Re: Graph by Date
  • Next by thread: Re: Expressions with ellipsis (...)