From e91812bfb3518d6ee9709f83f8efd2706447a125 Mon Sep 17 00:00:00 2001
From: Kenneth Odle <kenneth.odle@kjodle.net>
Date: Sat, 28 Oct 2023 16:00:58 -0400
Subject: [PATCH] =?UTF-8?q?Updated=20=C2=ABarray=C2=BB=20section?=
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---
 lbol.tex | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/lbol.tex b/lbol.tex
index 144a123..a829743 100644
--- a/lbol.tex
+++ b/lbol.tex
@@ -883,17 +883,17 @@ You can typeset matrices and other similar objects using an \texttt{array} envir
 
 \begin{itemize}[noitemsep]
  \item \texttt{array} can only be used in a math environment.
- \item You must declare the number and alignment of the columns by using \verb+\begin{array}{crl}+. In this instance, we are declaring one centered column, one right-aligned column, and one left-aligned column. 
+ \item You must declare the number and alignment of the columns by using something like this:\vspace{0.5em} \\ \vspace{0.5em} \verb+\begin{array}{crl}+ \\ In this instance, we are declaring one centered column, one right-aligned column, and one left-aligned column. 
 \end{itemize}
 
 In the example below, I've chose animal names to make the column alignment more explicit.
 
-\begin{Verbatim}[frame=lines, numbers=left, xleftmargin=5mm, framesep=3mm, breaklines=true, label=array Example]
+\begin{Verbatim}[frame=lines, numbers=left, xleftmargin=5mm, framesep=3mm, breaklines=true, label=\fbox{array Example}]
 \[
 Zoo~animals = \left\{ \begin{array}{crl} 
 lion & hippopotamus & gnu \\
 elephant & zebra & kangaroo \\
-bear & camel & wallaby 
+bear & camel & naked~mole~rats 
 \end{array}\right\}
 \]
 \end{Verbatim}
@@ -902,10 +902,12 @@ bear & camel & wallaby
 Zoo~animals = \left\{ \begin{array}{crl} 
 lion & hippopotamus & gnu \\
 elephant & zebra & kangaroo \\
-bear & camel & wallaby 
+bear & camel & naked~mole~rats 
 \end{array}\right\}
 \]
 
+\paragraph{Note:} Because the \texttt{array} environment is designed for math applications, rather than a text application like our example, I had to use a $\sim$ to add the spaces in ``naked mole rats''.
+
 If the built-in \texttt{array} environment cannot do all that you want, use the \texttt{amsmath} package and its \texttt{matrix} environment, which provides more options.
 
 \section{Special Math Environments}