Re: Coupled Differential Equations

*To*: mathgroup at smc.vnet.net*Subject*: [mg34772] Re: Coupled Differential Equations*From*: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>*Date*: Thu, 6 Jun 2002 01:54:54 -0400 (EDT)*Organization*: Universitaet Leipzig*References*: <adkf9d$9u8$1@smc.vnet.net>*Reply-to*: kuska at informatik.uni-leipzig.de*Sender*: owner-wri-mathgroup at wolfram.com

Hi, something like n = 5; Table[ V[k]'[t] == V[k][t] + Sum[V[k][t]*V[j][t]*(1 - KroneckerDelta[j, k]), {j, 0, n}], {k, 0, n}] ?? Regards Jens Cyrill Slezak wrote: > > I understand that NDSolve will solve a set of first order coupled. diff.eqn. > Here is my problem: I have a set of 20+ equation that all have the exact > same structure and I can't seem to find an easy way to input them. For any > help I'd be highly appreciative. The equations are of the form > > d V_k(l)/d l = V_k(l) + Sum[ V_k'(l), (k not equal k')] > > where k is the number of diff. eqn. > > Thanks for any help, > > Cyrill