deletions | additions       diff --git a/Rank & centrality.tex b/Rank & centrality.tex  index 66ee8d9..7570aca 100644  --- a/Rank & centrality.tex  +++ b/Rank & centrality.tex 
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$$  centrality (v, p_i) = (sim_i(v,1) - sim_i) + (sim_i(v,2)- sim_i)  $$   $$  centrality (v, p_i) = (sim^1_i(v) - sim_i) + (sim^2_i(v)- sim_i)  $$  \end{definition}