deletions | additions       diff --git a/subsection_The_P__rm_act__.tex b/subsection_The_P__rm_act__.tex  index 33f2def..afedb13 100644  --- a/subsection_The_P__rm_act__.tex  +++ b/subsection_The_P__rm_act__.tex 
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\begin{equation}  f \equiv A(P_{\rm act})/A(P_{\rm max}) = \left( \dfrac{\Gamma_{\rm act}(P_{\rm act})}{\Gamma_{\rm act}(P_{\rm max})} \right)^2 \left( \dfrac{P_{\rm act} - P_{\rm min}}{P_{\rm max} - P_{\rm min}} \right).   \end{equation}  For now, we'll assume $\Gamma_{\rm act}$ is independent of $P_{\rm act})$, act}$,  so $A(P_{\rm act})/A(P_{\rm max}) = \left( \dfrac{P_{\rm act} - P_{\rm min}}{P_{\rm max} - P_{\rm min}} \right)$.