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Some mathematics: $a^2+b^2=c^2$

In WeBWorK: \(x^2+y^2=z_2\)

$\tan(x^2)$, $\alpha$, $\frac{2}{\beta}$, $a\neq b$, $A\subset B$, $A\not\subset B$

``double'' quotes, `single' quotes, a ligature, iff

\begin{bmatrix}
2 & 3 & 4\\
5 & 7 & 9
\end{bmatrix}

$\{1, 2, 3\}$, $1, 2, 3, \dots$


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