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Hello. I've created this page, but don't understand why I get an error with the references. Any help is appriciated. Omer Markovitch. http://sites.google.com/site/omermar/ 14:38, 20 June 2011 (UTC)

Hello. I want to put the (complicated) equation, but keep getting an error.
This is a differential equation, with several parts. Any help is appriciated. I can send an example as a PDF by email. Omer Markovitch http://sites.google.com/site/omermar/ 14:41, 20 June 2011 (UTC)
— Preceding unsigned comment added by Omermar ( talk • contribs)
Testing eqs in discussion: ${\displaystyle N=\sum _{i=1}^{NG}n_{i}.}$

Now for the real thing:

${\displaystyle {\frac {dn_{i}}{dt}}=(k_{f}*ROU*N-k_{b}*n_{i})*(1+\sum _{j=1}^{NG}BETAij*{\frac {n_{j}}{N}})}$

Omer http://sites.google.com/site/omermar/ 07:53, 21 June 2011 (UTC)