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+#LyX 1.3 created this file. For more info see http://www.lyx.org/
+\lyxformat 221
+\textclass article
+\language english
+\inputencoding auto
+\fontscheme default
+\graphics default
+\paperfontsize default
+\spacing single 
+\papersize Default
+\paperpackage a4
+\use_geometry 0
+\use_amsmath 0
+\use_natbib 0
+\use_numerical_citations 0
+\paperorientation portrait
+\secnumdepth 3
+\tocdepth 3
+\paragraph_separation indent
+\defskip medskip
+\quotes_language english
+\quotes_times 2
+\papercolumns 1
+\papersides 1
+\paperpagestyle default
+
+\layout Title
+
+How to enter a matrix
+\layout List
+\labelwidthstring 00.00.0000
+
+Ctrl-n Create new document
+\layout List
+\labelwidthstring 00.00.0000
+
+Ctrl-M Insert math inset in display mode
+\layout List
+\labelwidthstring 00.00.0000
+
+Meta-m\SpecialChar ~
+[ Insert 
+\begin_inset Formula $\left[\right]$
+\end_inset 
+
+ 
+\layout List
+\labelwidthstring 00.00.0000
+
+Math\SpecialChar ~
+panel: Insert matrix, 3 rows, 3 columns
+\layout Standard
+
+Now just use the cursor to navigate around the entries in the matrix.
+ Here's how it will look: (To create the fractions, use Meta-m\SpecialChar ~
+f)
+\layout Standard
+
+
+\begin_inset Formula \[
+\left[\begin{array}{ccc}
+1 & \frac{1}{3} & \frac{1}{2}\\
+3 & 1 & 3\\
+2 & \frac{1}{3} & 1\end{array}\right]\]
+
+\end_inset 
+
+
+\the_end