# [XeTeX] Drawings within a matrix

HAF MED wap.haf at gmail.com
Wed Apr 9 08:55:12 CEST 2008

HELLO,

yu can use pgf ex. :

\documentclass[11pt]{article}
\usepackage{pgf}
\usepackage{tikz}
\usetikzlibrary{arrows,matrix}
\begin{document}
$A=\begin{array}{cc} \begin{tikzpicture} \matrix [matrix of math nodes,left delimiter=(,right delimiter=), row 1 column 1/.style={red} ] { a_{11} & \node(c) {a_{12}}; & & \node(d) {a_{1n}}; \\ \node(a) {a_{21}}; & \node(e) {a_{22}}; & \cdots & a_{2n} \\ & \vdots & \ddots & \vdots \\ \node(b) {a_{n1}}; & a_{n2} & \cdots & \node(f) {a_{nn}}; \\ }; \draw [red,thick] (e.north west) rectangle (f.south east); \draw [-,red,very thick] (a.north) -- (b.south); \draw [-,red,very thick] (c.west) -- (d.east); \end{tikzpicture} \\ \end{array}$
\end{document}

2008/4/9, Will Robertson <wspr81 at gmail.com>:
>
> On 09/04/2008, at 3:37 PM, Yaniv Hollander wrote:
>
> >
> > Does anybody know how I can combine drawings into matrices in Latex? For
> > example, lets say I want to present a symmetric matrix, and I want to put a
> > triangular containing the word 'SYM' above the cells of the lower triangular
> > of the matrix. Is it possible to do such a thing?
> >
>
> I'm not really sure what you mean, I'm afraid. It might be be better to
> ask this sort of non-XeTeX specific question in a more general group like
> texhax or comp.text.tex...
>
> Will
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>
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