deletions | additions       diff --git a/res_fitfunction.md b/res_fitfunction.md  index 0d79b2b..740c4c6 100644  --- a/res_fitfunction.md  +++ b/res_fitfunction.md 
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For the optimizer to obtain good performance when fitting the function used for fitting should be continously differentiable. With this in mind, the transient function is convolved with a gaussian \(G(\sigma)\) to yield the actual fitting function:  \[  f(A, d, \tau_{d}, \tau_{r}, \mu, t, \sigma) = g \ast G  \]  For notational purposes we shall represent the fit function parameters by \(\mathbf{p}=