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matrices is about matrices in equations and diagrams.

Using AMS-LaTeX (package amsmath, the AMS document classes, etc.), there are several commands to create matrices in math mode. For example,

I_2 = \begin{bmatrix}
  1 & 0 \\
  0 & 1
\end{bmatrix}

typesets:

There are many other commands available to typeset matrices:

• The bmatrix environment, shown above, typesets a matrix in braces. matrix typesets a matrix with no delimiters; pmatrix uses parentheses, Bmatrix uses braces, vmatrix uses vertical lines, and Vmatrix uses double vertical lines.
• The matrix* environment allows one to specify the alignment of the matrix elements: for example, \begin{matrix*}[r]...\end{matrix*} right-aligns all of the columns. There's also pmatrix*, bmatrix*, etc.
• The smallmatrix environment typesets a matrix in line, and is small enough to look good in text-style math. In addition, the mathtools package provides psmallmatrix, bsmallmatrix, etc., which also add delimiters on each side.
• The bordermatrix command allows one to annotate the rows or columns of a matrix (also see the kbordermatrix package).
• The spalign package provides a facility for typesetting matrices, and using other alignment environments and macros, with spaces as the alignment delimiter and semicolons (by default) as the end-of-row indicator. This package also contains utility macros for typesetting augmented matrices, vectors, arrays, and more, and is easily extendable to other situations that use alignments.
• TikZ has a matrix library which allows extensive customization. If your question is about this library, use the tikz-matrix tag.

#Frequently asked questions:

• What's the best way to make an augmented "coefficient" matrix?
• How can I increase the line spacing in a matrix?
• How can I highlight part of a matrix?
• Where is the \matrix command?

matrices is about matrices in equations and diagrams.

Using AMS-LaTeX (package amsmath, the AMS document classes, etc.), there are several commands to create matrices in math mode. For example,

I_2 = \begin{bmatrix}
  1 & 0 \\
  0 & 1
\end{bmatrix}

typesets:

There are many other commands available to typeset matrices:

• The bmatrix environment, shown above, typesets a matrix in braces. matrix typesets a matrix with no delimiters; pmatrix uses parentheses, Bmatrix uses braces, vmatrix uses vertical lines, and Vmatrix uses double vertical lines.
• The matrix* environment allows one to specify the alignment of the matrix elements: for example, \begin{matrix*}[r]...\end{matrix*} right-aligns all of the columns. There's also pmatrix*, bmatrix*, etc.
• The smallmatrix environment typesets a matrix in line, and is small enough to look good in text-style math. In addition, the mathtools package provides psmallmatrix, bsmallmatrix, etc., which also add delimiters on each side.
• The bordermatrix command allows one to annotate the rows or columns of a matrix (also see the kbordermatrix package).
• TikZ has a matrix library which allows extensive customization. If your question is about this library, use the tikz-matrix tag.

#Frequently asked questions:

• What's the best way to make an augmented "coefficient" matrix?
• How can I increase the line spacing in a matrix?
• How can I highlight part of a matrix?
• Where is the \matrix command?

matrices is about matrices in equations and diagrams.

Using AMS-LaTeX (package amsmath, the AMS document classes, etc.), there are several commands to create matrices in math mode. For example,

I_2 = \begin{bmatrix}
  1 & 0 \\
  0 & 1
\end{bmatrix}

typesets:

There are many other commands available to typeset matrices:

• The bmatrix environment, shown above, typesets a matrix in braces. matrix typesets a matrix with no delimiters; pmatrix uses parentheses, Bmatrix uses braces, vmatrix uses vertical lines, and Vmatrix uses double vertical lines.
• The matrix* environment allows one to specify the alignment of the matrix elements: for example, \begin{matrix*}[r]...\end{matrix*} right-aligns all of the columns. There's also pmatrix*, bmatrix*, etc.
• The smallmatrix environment typesets a matrix in line, and is small enough to look good in text-style math. In addition, the mathtools package provides psmallmatrix, bsmallmatrix, etc., which also add delimiters on each side.
• The bordermatrix command allows one to annotate the rows or columns of a matrix (also see the kbordermatrix package).
• TikZ has a matrix library which allows extensive customization. If your question is about this library, use the tikz-matrix tag.

#Frequently asked questions:

• What's the best way to make an augmented "coefficient" matrix?
• How can I increase the line spacing in a matrix?
• How can I highlight part of a matrix?
• Where is the \matrix command?

matrices is about matrices in equations and diagrams.

Using AMS-LaTeX (package amsmath, the AMS document classes, etc.), there are several commands to create matrices in math mode. For example,

I_2 = \begin{bmatrix}
  1 & 0 \\
  0 & 1
\end{bmatrix}

typesets:

There are many other commands available to typeset matrices:

• The bmatrix environment, shown above, typesets a matrix in braces. matrix typesets a matrix with no delimiters; pmatrix uses parentheses, Bmatrix uses braces, vmatrix uses vertical lines, and Vmatrix uses double vertical lines.
• The matrix* environment allows one to specify the alignment of the matrix elements: for example, \begin{matrix*}[r]...\end{matrix*} right-aligns all of the columns. There's also pmatrix*, bmatrix*, etc.
• The smallmatrix environment typesets a matrix in line, and is small enough to look good in text-style math. In addition, the mathtools package provides psmallmatrix, bsmallmatrix, etc., which also add delimiters on each side.
• The bordermatrix command allows one to annotate the rows or columns of a matrix (also see the kbordermatrix package).
• The spalign package provides a facility for typesetting matrices, and using other alignment environments and macros, with spaces as the alignment delimiter and semicolons (by default) as the end-of-row indicator. This package also contains utility macros for typesetting augmented matrices, vectors, arrays, and more, and is easily extendable to other situations that use alignments.
• TikZ has a matrix library which allows extensive customization. If your question is about this library, use the tikz-matrix tag.

#Frequently asked questions:

• What's the best way to make an augmented "coefficient" matrix?
• How can I increase the line spacing in a matrix?
• How can I highlight part of a matrix?
• Where is the \matrix command?

matrices is about matrices in equations and diagrams.

Using AMS-LaTeX (package amsmath, the AMS document classes, etc.), there are several commands to create matrices in math mode. For example,

I_2 = \begin{bmatrix}
  1 & 0 \\
  0 & 1
\end{bmatrix}

typesets:

There are many other commands available to typeset matrices:

• The bmatrix environment, shown above, typesets a matrix in braces. matrix typesets a matrix with no delimiters; pmatrix uses parentheses, Bmatrix uses braces, vmatrix uses vertical lines, and Vmatrix uses double vertical lines.
• The matrix* environment allows one to specify the alignment of the matrix elements: for example, \begin{matrix*}[r]...\end{matrix*} right-aligns all of the columns. There's also pmatrix*, bmatrix*, etc.
• The smallmatrix environment typesets a matrix in line, and is small enough to look good in text-style math. In addition, the mathtools package provides psmallmatrix, bsmallmatrix, etc., which also add delimiters on each side.
• The bordermatrix command allows one to annotate the rows or columns of a matrix (also see the kbordermatrix package).
• TikZ has a matrix library which allows extensive customization. If your question is about this library, use the tikz-matrix tag.

#Frequently asked questions:

• What's the best way to make an augmented "coefficient" matrix?
• How can I increase the line spacing in a matrix?
• How can I highlight part of a matrix?
• Where is the \matrix command?

matrices is about matrices in equations and diagrams.

Using AMS-LaTeX (package amsmath, the AMS document classes, etc.), there are several commands to create matrices in math mode. For example,

I_2 = \begin{bmatrix}
  1 & 0 \\
  0 & 1
\end{bmatrix}

typesets:

There are many other commands available to typeset matrices:

• The bmatrix environment, shown above, typesets a matrix in braces. matrix typesets a matrix with no delimiters; pmatrix uses parentheses, Bmatrix uses braces, vmatrix uses vertical lines, and Vmatrix uses double vertical lines.
• The matrix* environment allows one to specify the alignment of the matrix elements: for example, \begin{matrix*}[r]...\end{matrix*} right-aligns all of the columns. There's also pmatrix*, bmatrix*, etc.
• The smallmatrix environment typesets a matrix in line, and is small enough to look good in text-style math. In addition, the mathtools package provides psmallmatrix, bsmallmatrix, etc., which also add delimiters on each side.
• The bordermatrix command allows one to annotate the rows or columns of a matrix (also see the kbordermatrix package).
• TikZ has a matrix library which allows extensive customization. If your question is about this library, use the tikz-matrix tag.

#Frequently asked questions:

• What's the best way to make an augmented "coefficient" matrix?
• How can I increase the line spacing in a matrix?
• How can I highlight part of a matrix?
• Where is the \matrix command?