Using KaTeX for matrix and math representation.
Matrix:
\(\begin{bmatrix} -1 & 3 \\ 3 & 2\end{bmatrix} = \begin{bmatrix} 7 \\ 1 \end{bmatrix}\)\(\begin{bmatrix}
-1 & 3 \\
3 & 2\end{bmatrix}
=
\begin{bmatrix}
7 \\ 1
\end{bmatrix}\)
Linear Equations
\(\begin{cases} -x + 3y = 7 \\ 3x + 2y = 1 \end{cases}\)\(\begin{cases}
-x + 3y = 7
\\
3x + 2y = 1
\end{cases}\)
Graph
\begin{CD} A @>a>> B \\ @VbVV @AAcA \\ C @= D \end{CD}\begin{CD}
A @>a>> B \\
@VbVV @AAcA \\
C @= D
\end{CD}
