deletions | additions       diff --git a/untitled.tex b/untitled.tex  index a36f622..c0e5556 100644  --- a/untitled.tex  +++ b/untitled.tex 
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\begin{equation}  \frac{1}{2}v^2 - \Phi_G +\int{\frac{dP}{\rho}} = \rm{cst}   \end{equation}  To evaluate the last term on the RHS let's assum assume  we are dealing with a monatomic ideal gas. Then \begin{equation}  P = \left(\gamma - 1\right)\epsilon \rho = RT \rho.  \end{equation}