Matrices
You must always use the amsmath
package if you are going to use the following commands. There are four main types of matrix, as shown in the code below:
\begin{matrix}
a & b \\
c & d
\end{matrix}
\quad
\begin{pmatrix}
a & b \\
c & d
\end{pmatrix}
\quad
\begin{bmatrix}
a & b \\
c & d
\end{bmatrix}
\quad
\begin{vmatrix}
a & b \\
c & d
\end{vmatrix}
\quad
\begin{Vmatrix}
a & b \\
c & d
\end{Vmatrix}
This code produces
There are a couple important things to note about this:
equation
, equation*
, or $...$
environment - the bmatrix
command is not a math environment on its own.x_{11}
), then put a &
, and then write the next element. For multiple rows, at the end of each row put \\
(you do not have to do this for the last row). It is fairly similar to a table in this.