Re: Automatic update of variables
- To: mathgroup at smc.vnet.net
- Subject: [mg110329] Re: Automatic update of variables
- From: telefunkenvf14 <rgorka at gmail.com>
- Date: Sun, 13 Jun 2010 04:12:24 -0400 (EDT)
- References: <huvk4q$rq0$1@smc.vnet.net>
On Jun 12, 4:31 am, Antonio De Ju=E1rez <adejua... at gmail.com> wrote: > Sometimes, I would find useful a method to update variables > automatically. For example, given the delayed rule > > b:=3 a+1; > > it would be useful to have b updated whenever a is assigned a new > value, like a=37. Is there any method to do this in Mathematica? > > Thanks, > > Antonio. You could tell Mathematica to treat b as Dynamic: Dynamic[b] b := 3 a + 1; Each time you change a, b now reflects the change. a = 2 a = 3 -RG