deletions | additions       diff --git a/Electromagnetism.tex b/Electromagnetism.tex  index a473f89..2521bff 100644  --- a/Electromagnetism.tex  +++ b/Electromagnetism.tex 
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Which gives \begin{equation}  \Alpha_\mu A_\mu  = \begin{bmatrix} \frac{\varphi}{c} +A_xi+A_yj+A_zk \\  \frac{\varphi i}{c} -A_x +A_yk -A_zj \\  \frac{\varphi j}{c} -A_xk -A_y +A_zi \\