deletions | additions       diff --git a/untitled.tex b/untitled.tex  index cd5acc0..caca10d 100644  --- a/untitled.tex  +++ b/untitled.tex 
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GFE_r\equiv \frac{d}{dt}[\Sigma \gamma_i k_{rel}]  \end{equation}  \begin{equation}  GFE_a\equiv \frac{d}{dt}[\Sigma\gamma_i k{abs}] k_{abs}]  \end{equation}  \begin{equation}  GFE_s\equiv \frac{d}{dt}[\Sigma S_i k_{abs}]