User:Aaron Schulz/sandbox

Test edit:

\begin{align} \\ a + \infty = \infty + a & = \infty, & a \in \mathbb{R} \\ a - \infty = \infty - a & = \infty, & a \in \mathbb{R} \\ a \cdot \infty = \infty \cdot a & = \infty, & a \in \mathbb{R}, a \neq 0 \\ \infty \cdot \infty & = \infty \\ \frac{a}{\infty} & = 0, & a \in \mathbb{R} \\ \frac{\infty}{a} & = \infty, & a \in \mathbb{R}, a \neq 0 \\ \frac{a}{0} & = \infty, & a \in \mathbb{R}, a \neq 0 \end{align} $$

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