Using "found" code to typeset augmented matrices, want [] instead of ()

Question

Here's a minimal example of what I'm doing presently:

\documentclass[a4paper,12pt]{article}
\usepackage{amsmath}
\usepackage{arydshln}
\makeatletter
    \renewcommand*\env@matrix[1][*\c@MaxMatrixCols c]{%
      \hskip -\arraycolsep
      \let\@ifnextchar\new@ifnextchar
  \array{#1}}
\makeatother

\begin{document}
$\begin{pmatrix}[ccc:c]
  1&2&3&0 \\
  4&5&6&0 \\
  7&8&9&0 \\
\end{pmatrix}$
\end{document}

Here's what the output looks like:

Present output (parens)

I'd prefer if the left and right brackets on the matrix were square brackets instead of parentheses.

Is there an easy way to make such a change?

A excellent summary of matricies is in this answer: where is the matrix command — Peter Grill, Nov 21 '11 at 17:46

score 9 · Accepted Answer · edited Nov 21 '11 at 17:41

9

Easy. Change pmatrix to bmatrix:

enter image description here

See amsmath documentation for other kinds of matrices, like vmatrix, Vmatrix, etc

edited Nov 21 '11 at 17:41

Werner

603,163

answered Nov 21 '11 at 17:35

Boris

38,129

Thanks @Boris! That works great! I really appreciate the help. – Harold Nov 21 '11 at 17:42
1

or look at mathmode.pdf (26.6 Matrix environments) with texdoc mathmode.pdf – Alain Matthes Nov 21 '11 at 17:42

Using "found" code to typeset augmented matrices, want [] instead of ()

1 Answers1