User talk:Nyet

$erfc (x) = \frac{2}{\sqrt{π}} \int_{x}^{\infty} e^{- t^{2}} d t = \frac{e^{- x^{2}}}{x \sqrt{π}} \sum_{n = 0}^{\infty} (- 1)^{n} \frac{(2 n)!}{n! (2 x)^{2 n}}$

$D_{F} (f_{i}) = L_{F} (D_{0} + S_{0} (c / f_{i} - λ_{r e f}))$

$e^{i π} = - 1$