deletions | additions       diff --git a/Complex.tex b/Complex.tex  index 21a4bee..4f84e14 100644  --- a/Complex.tex  +++ b/Complex.tex 
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The operation has a left identity \begin{equation}  \begin{bmatrix} 1 & 0 \\ 1 & 0 \end{bmatrix}\#\begin{bmatrix}a&b\\c&d\end{bmatrix}=\begin{bmatrix}a&b\\c&d\end{bmatrix}  \end{equation} However it is not possible to define a right identity! Using the same matrix above will keep the elements the same bu swap those in the right hand column.