Re: populating a list from system of odes

*To*: mathgroup at smc.vnet.net*Subject*: [mg45944] Re: populating a list from system of odes*From*: bobhanlon at aol.com (Bob Hanlon)*Date*: Fri, 30 Jan 2004 04:16:23 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

var = Cases[ode, f_Symbol[t], Infinity] // Union Bob Hanlon In article <bvaq98$ah0$1 at smc.vnet.net>, sean_incali at yahoo.com (sean kim) wrote: << let's say you have a system of ode's like.. { a'[t] == k7 - k5 a[t] + k2 ab[t] - k1 a[t] b[t], ab'[t] == -k2 ab[t] + k1 a[t] b[t], b'[t] == k8 + k2 ab[t] - k6 b[t] - k1 a[t] b[t], c'[t] == k3 ab[t] - k4 c[t] } now what I want to do is get a list of the variables in the system without having to type them out. so that I would get {a[t],ab[t], b[t], c[t]}