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\[ F(x)=\int\limits_{x_0}^{x} f(\psi) \, \mathrm{d}\psi \\ \\ \\ \oint\limits_{\gamma}f(z) \, \mathrm{d}z=\int\limits_{\alpha}^{\beta}f(r(t)) \, \dot{r}(t) \: \mathrm{d}t \]
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Fri, 13 Jun 2014 21:00 GMT