Re: transforming a rule of lists to a list of rules
- To: mathgroup at smc.vnet.net
- Subject: [mg69157] Re: transforming a rule of lists to a list of rules
- From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
- Date: Thu, 31 Aug 2006 04:39:18 -0400 (EDT)
- Organization: The Open University, Milton Keynes, UK
- References: <ed3qil$rn5$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Ken Senior wrote:
> Hello everyone.
>
> Does anyone know a way to transform a rule involving a list into a list
> of individual rules, that is to interpret the rule elementwise? For
> example, given
>
> {a,b,c} -> {0,3,x}
>
> is there a transformation which will turn this into
>
> {a->0, b->3, c->x}
>
> Thanks for the help!
>
> Ken
>
Hi Ken,
Use the Mathematica built-in function Thread [1].
In[1]:=
Thread[{a, b, c} -> {0, 3, x}]
Out[1]=
{a -> 0, b -> 3, c -> x}
Regards,
Jean-Marc
[1] http://documents.wolfram.com/mathematica/functions/Thread