Re: Bug in Mathematica ?
- To: mathgroup at smc.vnet.net
- Subject: [mg60785] Re: [mg60779] Bug in Mathematica ?
- From: Andrzej Kozlowski <andrzej at yhc.att.ne.jp>
- Date: Thu, 29 Sep 2005 05:40:53 -0400 (EDT)
- References: <200509280541.BAA08394@smc.vnet.net>
- Reply-to: Andrzej Kozlowski <andrzej at akikoz.net>
- Sender: owner-wri-mathgroup at wolfram.com
On 28 Sep 2005, at 14:41, Bidule wrote:
> Hi,
>
> I've computed the following two expressions:
>
> Integrate[Max[x, y], {x, 0, 1}, {y, 0, 1}]
> NIntegrate[Max[x, y], {x, 0, 1}, {y, 0, 1}]
>
> which result in very different numbers. When I calculate the
> integral by
> hand I get (2/3).
>
> Any thoughts ? I guess by now it's probably a known bug. (or maybe
> even
> a 'feature').
>
> B.
>
>
The number should be very different. It is a feature.
In[1]:=
Integrate[Max[x, y], {x, 0, 1}, {y, 0, 1}]
Out[1]=
2/3
In[2]:=
NIntegrate[Max[x, y], {x, 0, 1}, {y, 0, 1}]
Out[2]=
0.6666666666666666
In[4]:=
$Version
Out[4]=
5.1 for Mac OS X (October 25, 2004)
Andrzej Kozlowski
- References:
- Bug in Mathematica ?
- From: Bidule <toto@truc.com>
- Bug in Mathematica ?