deletions | additions       diff --git a/untitled.tex b/untitled.tex  index c7d96bb..93c4dcb 100644  --- a/untitled.tex  +++ b/untitled.tex 
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\begin{equation}  I_2(\mu, \sigma) = \int_{-\mu}^{0} \frac{\sigma dt}{\sqrt{2\pi}}\exp\left(-t\right) + \frac{\mu}{2} \,\,{\rm erf} \left( \frac{\mu}{\sqrt{2}\sigma} \right)  \end{equation}  \begin{equation}  I_2(\mu, \sigma) = \frac{\sigma}{\sqrt{2\pi}}\left[ 1 - \exp\left(-\mu\right) \right] + \frac{\mu}{2} \,\,{\rm erf} \left( \frac{\mu}{\sqrt{2}\sigma} \right)  \end{equation}  ===  \begin{equation}