Re: Interval[{a,b}]-Interval[{a,b}] = 0?
- To: mathgroup at smc.vnet.net
- Subject: [mg66633] Re: [mg66613] Interval[{a,b}]-Interval[{a,b}] = 0?
- From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
- Date: Thu, 25 May 2006 02:57:49 -0400 (EDT)
- References: <200605240701.DAA08477@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
On 24 May 2006, at 16:01, Richard Fateman wrote:
> Is this a bug or a feature?
> Notice that Interval[{-1,1}]-Interval[{-1,1}] is Interval[{-2,2}].
>
> (I'm using Mathematica 5.1)
>
> RJF
>
I get
Interval[{-1,1}]-Interval[{-1,1}]
Interval[{-2,2}]
In[6]:=
$Version
Out[6]=
5.1 for Mac OS X (October 25, 2004)
This is most certainly correct (as, I think, you point out in your
post). So whatever you have found, is neither a bug or a feature of
my copy of Mathematica 5.1. Hmm... perhaps they have some "cracked"
copies of Mathematica at Berkley? ;-)
Andrzej Kozlowski
Tokyo, Japan
- References:
- Interval[{a,b}]-Interval[{a,b}] = 0?
- From: "Richard Fateman" <fateman@cs.berkeley.edu>
- Interval[{a,b}]-Interval[{a,b}] = 0?