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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?

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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
1  
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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closed as too localized by Qrrbrbirlbel, diabonas, Fran, Marco Daniel, lockstep Feb 24 '13 at 18:24

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