deletions | additions       diff --git a/Complex.tex b/Complex.tex  index b0e2272..7c10adf 100644  --- a/Complex.tex  +++ b/Complex.tex 
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\vec{x_1}{x_2}=\mat{0}{0}{1}{-1}\#\vec{x_1+x_2}{x_2}  \end{equation}  Another legitimate transfrom at this stage would be \begin{equation}  A\#v=u_{i} \\  u_1=A_{21}v_1 + A_{22}v_2 \\  u_2=A_{21}v_2  \end{equation}