## Trouble Getting Your Computer to Display Math?

$\left[\begin{array}{cccc|c} 1&7&8&2&3 \\ 4&2&4&9&7 \\ 3&5&7&1&8 \\ \end{array}\right]$
Now whenever you see this $\begin{bmatrix}8&2\\ \end{bmatrix}$ or $\binom{6}{2}$ stuff in a webpage, just click the "ChatJax" bookmark.