deletions | additions       diff --git a/Gradients.tex b/Gradients.tex  index e4dcc14..2f59663 100644  --- a/Gradients.tex  +++ b/Gradients.tex 
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\begin{equation}  F_{r} = -\frac{4ac}{3}\frac{T^3}{\kappa \rho}\frac{\D \ln T}{\D \ln \P} = \frac{4ac}{3}\frac{T^4}{\kappa \rho}\frac{\nabla}{\hp}.  \end{equation}  Finally the fictitious (but computable) radiative gradient can be defined as the gradient of temperature required by radiation to carry the total stellar flux:  \begin{equation}  F = F_{c} + F_{r} \equiv \frac{4ac}{3}\frac{T^4}{\kappa \rho}\frac{\nabla_r}{\hp}.  \end{equation}