User:Kortaggio/Sandbox

$$ \text{Last 10 Year Average Earnings per Share} = \frac{\displaystyle \left(\sum_{k=0}^{39} \text{Quarterly EPS}_{t-k} \right)}{40} $$

$$a = \left\{a \in \mathbb{R} | 0 < a < 1 \right\}$$

$$\int_{-\infty}^{x}\frac{1}{\sigma\sqrt{2\pi}}e^{-\frac{(x-\mu)^2}{2\sigma^2}}\,dx = \frac12\Big[1 + \operatorname{erf}\Big( \frac{x-\mu}{\sigma\sqrt2}\Big)\Big]$$

$$\left(\sum_{i=0}^n 10^i \right)^2 = \sum_{i=1}^n i\cdot 10^{\left(i-1\right)} + \sum_{i=1}^{n-1} i\cdot 10^{\left(2n - i\right)}$$