Re: Rules
- To: mathgroup at smc.vnet.net
- Subject: [mg66410] Re: [mg66359] Rules
- From: "Chris Chiasson" <chris at chiasson.name>
- Date: Thu, 11 May 2006 02:17:07 -0400 (EDT)
- References: <200605101034.GAA21926@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
If the symbol Alist has a value, you will have to hold or block it (or otherwise prevent evaluation) in order to transform Alist into something else. Having a single replacement is the same as having that one replacement wrapped in List, except for order of operations issues. If you have a more specific example that you would like more information about, you could just ask the list or do some experimenting. Regards, On 5/10/06, Marcin Rak <umrakmm at cc.umanitoba.ca> wrote: > Hey everyone, > > I had two simple questions, and was wondering wether anyone could through > something my way: > > 1) When we have a list, call it AList, and we type the following > AList /. {rule1} > AList /. rule1 > what is the difference between the two? And, how would I go about > defining a rule for the variable AList, and a rule for the contents of the > list - obviously these are two different concepts, yet how would you > differentiate b/w the two? > > Thanx to all > MR > > -- http://chris.chiasson.name/
- References:
- Rules
- From: Marcin Rak <umrakmm@cc.umanitoba.ca>
- Rules