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<math>\frac{1-3}{e^2}</math>
<math>PDF=\frac{1}{2 \pi \sigma^2}e^{\frac{r^2}{2*\sigma^2}}</math>

Revision as of 18:19, 8 July 2008

[math]\displaystyle{ PDF=\frac{1}{2 \pi \sigma^2}e^{\frac{r^2}{2*\sigma^2}} }[/math]