Re: Automatic update of variables

*To*: mathgroup at smc.vnet.net*Subject*: [mg110332] Re: Automatic update of variables*From*: Bob Hanlon <hanlonr at cox.net>*Date*: Sun, 13 Jun 2010 04:12:57 -0400 (EDT)

b == Dynamic[3 a + 1] Bob Hanlon ---- "Antonio De Ju=C3=A1rez" <adejuarez 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.