deletions | additions       diff --git a/Pressure Scale Height.tex b/Pressure Scale Height.tex  index 317f42e..f1d7d05 100644  --- a/Pressure Scale Height.tex  +++ b/Pressure Scale Height.tex 
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\begin{equation}  -\frac{\D \ln \p}{\D r} \equiv \frac{1}{\hp} = \frac{\rho g}{\p}  \end{equation}  where $\P$ $\p$  is the total pressure ($\P_{gas} ($\p_{gas}  + \P_{rad}$). \p_{rad}$).  The pressure scale height is a measure of the distance over which the pressure changes by an appreciable fraction of itself.