Recursive Rules

*To*: mathgroup at smc.vnet.net*Subject*: [mg31147] Recursive Rules*From*: "Mark S. Coleman" <mcoleman at bondspace.com>*Date*: Sat, 13 Oct 2001 02:47:12 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

Greetings, I know that a recurrent/recursive function can be written f[t_] := f[t] = a + b*f[t-1]. So that once an initial value is stipulated, e.g., f[0]=0, then the function "remembers" past values and can correctly calculate f[] for any t. I was wondering if it was possible to do the same thing with a Rule? Thanks, -Mark