deletions | additions       diff --git a/Three_sources_N62_1_N90_2_and__.tex b/Three_sources_N62_1_N90_2_and__.tex  index dd9acf8..9a33e31 100644  --- a/Three_sources_N62_1_N90_2_and__.tex  +++ b/Three_sources_N62_1_N90_2_and__.tex 
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\end{equation}  \begin{equation}  v_{in} \approx %\approx  \frac{\sigma^2}{v_{red} - v_{blue} ln\left( \frac{1+e T_{BD}/T_D}{1+e T_{RD}/T_D}\right) \end{equation}  tester