Re: Limit glitch
- To: mathgroup at smc.vnet.net
- Subject: [mg14330] Re: Limit glitch
- From: Selwyn Hollis <shollis at peachnet.campus.mci.net>
- Date: Tue, 13 Oct 1998 01:21:43 -0400
- Organization: fair
- References: <email@example.com>
- Sender: owner-wri-mathgroup at wolfram.com
Then, to be consistent with 99.999% of the calculus texts written in
the 20th century,
Wolfram might want to rename Limit.
David Withoff wrote:
> > I'm wondering whether this has been covered here before. I just noticed
> > that Limit often gives wrong results at jump discontinuities. For
> > example, Limit[x/Abs[x], x->0] returns 1. The pattern seems to be
> > that the right-sided limit is always given.
> > Does anyone know anything about this?
> > --
> The Limit function is designed to compute directional limits. The
> default for finite limits points is to compute the limit from the
> right. The result that you mentioned is correct as a directional
> limit. You can change the direction using the Direction option.
> Dave Withoff
> Wolfram Research
Dr. Selwyn Hollis
Associate Professor of Mathematics
Armstrong Atlantic State University
Savannah, GA 31419 USA
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