deletions | additions       diff --git a/Combination.tex b/Combination.tex  index 3c3d7dc..fb8a546 100644  --- a/Combination.tex  +++ b/Combination.tex 
...
\section{Combination}  If we then have some matrix of individual particle states. states \begin{equation}  A=\begin{bmatrix}   phi_{11} & phi_{12} & phi_{13} \\ phi_{21} & phi_{22} & phi_{23} \\ phi_{31} & phi_{32} & phi_{33}  \end{bmatrix}  \end{equation}  we can calculate the inverse as \begin{equation}  A^{-1}=\frac{1}{|A|}  \begin{bmatrix}  \begin{vmatrix} phi_{22} & phi_{23} \\ phi_{32} & phi_{33}\end{vmatrix} &  \begin{vmatrix} phi_{13} & phi_{12} \\ phi_{33} & phi_{32}\end{vmatrix} &  \begin{vmatrix} phi_{12} & phi_{13} \\ phi_{22} & phi_{23}\end{vmatrix} \\  \begin{vmatrix} phi_{23} & phi_{21} \\ phi_{33} & phi_{31}\end{vmatrix} &  \begin{vmatrix} phi_{11} & phi_{13} \\ phi_{31} & phi_{33}\end{vmatrix} &  \begin{vmatrix} phi_{13} & phi_{11} \\ phi_{23} & phi_{21}\end{vmatrix} \\  \begin{vmatrix} phi_{21} & phi_{22} \\ phi_{31} & phi_{32}\end{vmatrix} &  \begin{vmatrix} phi_{12} & phi_{11} \\ phi_{32} & phi_{31}\end{vmatrix} &  \begin{vmatrix} phi_{11} & phi_{12} \\ phi_{21} & phi_{22}\end{vmatrix}   \end{bmatrix}  \end{equation}