deletions | additions       diff --git a/2.tex b/2.tex  index 0caaaab..de7cf54 100644  --- a/2.tex  +++ b/2.tex 
...
\begin{equation}  S = \frac{e \cdot 100}{e + \left(\frac{d}{1000}\right)^4}  \end{equation} With $e = 5$ we get