Math Katex
Eqns
$$x+1$$
$$\bar{y}$$ $$\overrightarrow{AB}$$
$$ \begin{alignat}{2} 10&x+&3&y=2\ 3&x+&13&y=4 \end{alignat} $$
$$f(a,b,c) = (a^2+b^2+x^3)^3$$
$$\sum_{i=1}^\infty\frac{1}{n^2} =\frac{\pi^2}{6}$$
$$ \cfrac{2}{1+\cfrac{2}{1+\cfrac{2}{1}}} $$
$$
\begin{bmatrix}[r]
0 & -1
-1 & 0
\end{bmatrix}
$$
$$
\begin{CD}
A @>a>> B
@VbVV @AAcA
C @= D
\end{CD}
$$