Sum in an ode45?

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Peter
Peter el 11 de Dic. de 2011
I have the following differnetial equation
dy(1) = a*y(1)/N
where N is the sum of all the Y(i) at a given moment of time, not just at the beginning. How can I input this into ode45?
  2 comentarios
Jan
Jan el 11 de Dic. de 2011
What are "all Y(i)"?
Walter Roberson
Walter Roberson el 11 de Dic. de 2011
What does y(1) indicate in this context? Evaluation at y = 1 ? The first of set of subscripted variables?

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