amsmath
matrix environmentsThe amsmath
package provides commands to typeset matrices with different delimiters. Once you have loaded \usepackage{amsmath}
in your preamble, you can use the following environments in your math environments:
Type | LaTeX markup | Renders as |
---|---|---|
Plain | \begin{matrix}
|
\(\begin{matrix}1 & 2 & 3\\a & b & c\end{matrix}\) |
Parentheses; round brackets |
\begin{pmatrix}
|
\(\begin{pmatrix}1 & 2 & 3\\a & b & c\end{pmatrix}\) |
Brackets; square brackets |
\begin{bmatrix}
|
\(\begin{bmatrix}1 & 2 & 3\\a & b & c\end{bmatrix}\) |
Braces; curly brackets |
\begin{Bmatrix}
|
\(\begin{Bmatrix}1 & 2 & 3\\a & b & c\end{Bmatrix}\) |
Pipes | \begin{vmatrix}
|
\(\begin{vmatrix}1 & 2 & 3\\a & b & c\end{vmatrix}\) |
Double pipes | \begin{Vmatrix}
|
\(\begin{Vmatrix}1 & 2 & 3\\a & b & c\end{Vmatrix}\) |
If you need to create matrices with different delimiters, you can add them manually to a plain matrix
. For example:
LaTeX markup | Renders as |
---|---|
\left\lceil
|
\(\left\lceil\begin{matrix}1 & 2 & 3\\a & b & c\end{matrix}\right\rceil\) |
\left\langle
|
\(\left\langle\begin{matrix}1 & 2 & 3\\a & b & c\end{matrix}\right|\) |
When typesetting inline math, the usual matrix
environments above may look too big. It may be better to use smallmatrix
in such situations, although you will need to provide your own delimiters.
Trying to typeset an inline matrix here
$\begin{pmatrix}
a & b\\
c & d
\end{pmatrix}$
but it looks too big, so let's try
$\big(\begin{smallmatrix}
a & b\\
c & d
\end{smallmatrix}\big)$
instead.
The mathtools
package provides psmallmatrix
, bsmallmatrix
etc environments for convenience.