deletions | additions       diff --git a/res_fitting.md b/res_fitting.md  index a9ffdc8..9ffd029 100644  --- a/res_fitting.md  +++ b/res_fitting.md 
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\]  In order to reconstruct the entire image with all the pixels it is also necessary to know the location of the pixels. The parameter vector \(\mathbf{p}_i\) is extended with the coordinates of pixel *i*:  \[  \mathbf{r}_{i} \mathbf{r}_i  = \left[\mathbf{p}_i,x_i,y_i\right]=\left[A_i, d_i ,\tau_{d}_i,\tau_{r}_i,\mu_i,x_i,y_i\right] \left[\mathbf{p}_i,x_i,y_i\right]  \]