Re: extracting function from the list
- To: mathgroup at smc.vnet.net
- Subject: [mg47979] Re: extracting function from the list
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Tue, 4 May 2004 07:03:12 -0400 (EDT)
- Organization: Universitaet Leipzig
- References: <c778kv$her$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
RelaceAll[] my help you, in the case where you can have more
than a single solution you have to decide which solution you
whant to use and
q= v /. {{v->x^2}}[[1]]
will help you.
Regards
Jens
edgar wrote:
>
> Hi, all:
>
> I can not seem to figure out how to extract a function from the list.
> for example: mathematica gives me output:
> {{v->x^2}}
>
> How do I extract just x^2 out of that list and assign it to a
> different variable?
>
> thank you,
>
> edgar Lobachevskiy