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Re: Coupled Differential Equations


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


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