Re: position of matrix elements for intervals
- To: mathgroup at smc.vnet.net
- Subject: [mg78512] Re: position of matrix elements for intervals
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Tue, 3 Jul 2007 05:34:53 -0400 (EDT)
- Organization: Uni Leipzig
- References: <f68491$eqh$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
Hi,
mm = {{1, 1.`, 0.9999999932328848`}, {1.`, 0.9985849617864345`,
3.7570598417296495`*^-108}, {0.9999999999267634`,
4.0643593704937925`*^-207, 0}}
Position[mm, a_Real /; a > 0.99]
will do that.
Regards
Jens
kristoph wrote:
> Hi,
>
> Assume you have the following table:
>
> {{1, 1.`, 0.9999999932328848`}, {1.`, 0.9985849617864345`,
> 3.7570598417296495`*^-108}, {0.9999999999267634`,
> 4.0643593704937925`*^-207, 0}}
>
> I would like the position of all the elements >= 0.99. Or the position
> of all the elements of [0.4, 0.9] which in the above table does make a
> lot of sense.
> I'm familiar with Position[...,.] but since I look for reals of an
> interval I would kindly ask for help.
>
> Thanks a lot,
> Kristoph
>
>