Question involving scope/recursion/arguments
- To: mathgroup at smc.vnet.net
- Subject: [mg27642] Question involving scope/recursion/arguments
- From: "John Eric Hanson" <jhanson1 at stny.rr.com>
- Date: Fri, 9 Mar 2001 02:35:56 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Hello all- Having a bit of difficulty here. In general terms, the problem is this: I would like to have a function f that takes a list (among other things) as an argument. I would then like to make some adjustments to the list and then call f again (from inside the first f), and so on until the list satisfies a certain criteria. The general template would look something like this: f[list_,a_,b_] := (g[list], If[r, f[list_,c,d], STOP]) I can accomplish my intended task using a global variable for list (or assigning list to a global), but I haven't succeded yet to maintain the values when I simply want to recursively make adjustments to list without introducing a copy of it (or fixing the function to a specific variable). Any hints would be appreciated. Thanks much, Eric