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Neural Network representation

I took neural network drawing but i have an error on that:

\foreach \i in {1,2,3,4,5,6,7,8,9}{
    \foreach \j in {1,2,3,4,5,6,7,8}{
        \path[normal arrow,Cyan, draw opacity=0.2] (nx\i) -- (cl1n\j);
  • cl1n

    is like not declared or defined can you help me?

share|improve this question

closed as too localized by Qrrbrbirlbel, diabonas, Fran, Marco Daniel, lockstep Feb 24 '13 at 18:24

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

Welcome to TeX.SE. While code snippets are useful in explanations, it is always best to compose a fully compilable MWE that reproduces this problem. – Peter Grill Feb 20 '13 at 2:46
I have updated the answer with a full MWE, including xcolor option and required TikZ libraries. Does the example work now for you (use LuaLaTeX)? – Qrrbrbirlbel Feb 20 '13 at 3:12

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