deletions | additions       diff --git a/oscillationTheory.tex b/oscillationTheory.tex  index 8ffcae3..1638edc 100644  --- a/oscillationTheory.tex  +++ b/oscillationTheory.tex 
...
\begin{split}  E_{i}^2 &= p_{i}^2 + m_{i}^2 \\  &= p_{i}^2 (1 + \frac{m_{i}^2}{p_{i}^2}) \\  E_{i} &\approx p_{i}^2 (1 + \frac{m_{i}^2}{2 p_{i}^2) } p_{i}^2})  \end{split}  \end{equation}