陣列

範例 1:
$\begin{array}{clr} a+b & c & 9 \\ 5 & x^2+y & 3 \\ 8 & 7 & z_1 \\ \end{array}$

指令: 

$\begin{array}{clr}
a+b & c     & 9   \\
5   & x^2+y & 3   \\
8   & 7     & z_1 \\
\end{array}$

範例 2:
$\det\left \vert \begin{array}{cccc} b_{11} & b_{12} & \cdots & b_{1m} \\ b_{... ... \vdots \\ b_{n1} & b_{n2} & \cdots & b_{nm} \\ \end{array}\right \vert = 0 $

指令: 

$\det\left |
\begin{array}{cccc}
 b_{11} & b_{12} & \cdots & b_{1m} \\
 b_{21} & b_{22} & \cdots & b_{2m} \\
 \vdots & \vdots & \ddots & \vdots \\
 b_{n1} & b_{n2} & \cdots & b_{nm} \\
\end{array}\right | = 0$

範例 3:
$ \left\{ \begin{array}{l} x= \left [ \begin{array}{cc} a_1 & b_1 \\ c_1 & ... ...egin{array}{ccc} x_1 & \cdots & x_m \end{array} \right ] \end{array}\right . $

指令: 

$
\left\{
\begin{array}{l}
x=
    \left [
    \begin{array}{cc}
    a_1 & b_1 \\
    c_1 & d_1
    \end{array}
    \right ]
    +
    \left [
    \begin{array}{cc}
    a_2 & b_2 \\
    c_2 & d_2
    \end{array}
    \right ] \\ \\
y=
    \left [
    \begin{array}{ccc}
    x_1 & \cdots & x_m
    \end{array}
    \right ]
\end{array}
\right .
$