deletions | additions       diff --git a/res_fitting.md b/res_fitting.md  index 1de0686..17966f0 100644  --- a/res_fitting.md  +++ b/res_fitting.md 
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All *k* events detected in pixel *i* are represented by vectors \(\mathbf{p}_{i,k}\). These vectors can be stacked to make a event matrix for pixel *i*:  \[  E' E  = \left(  \begin{array}{l l} \begin{array}{l}  \mathbf{p}_{i,0}\\  \mathbf{p}_{i,1}\\  \ldots\\  \mathbf{p}_{i,k}  \end{array}    \]