Re: What does +- mean?
- To: mathgroup at smc.vnet.net
- Subject: [mg47569] Re: What does +- mean?
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Fri, 16 Apr 2004 05:20:42 -0400 (EDT)
- Organization: Universitaet Leipzig
- References: <c5lfbm$bq2$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
it is a bug int the formating of the series, because
Mathematica doen not see that
a[0]+a[1]+a[2]+a[3]+..
with a[i]=-b[i] should be printed as
a[0]-b[1]-b[2]-b[3]+ ..
Regards
Jens
Lautaro Vergara wrote:
>
> Hi,
>
> I have found (v. 5.0) an extrange thing: when one expands, e.g.,
>
> Series[Sqrt[-1/2+x^2],{x,0,4}]
>
> there appear a +- sign (which is correctly not present when one changes
> -1/2 by -1)
>
> is this a bug or a feature?
>
> Thanks
>
> L. Vergara