From 6daa64ace58c70563fbcb51a6ebaa556a449ca60 Mon Sep 17 00:00:00 2001
From: Kenneth Odle <kenneth.odle@kjodle.net>
Date: Sat, 16 Dec 2023 10:06:53 -0500
Subject: [PATCH] Added math section (v 0.3.0)

---
 compose-key-cheat-sheet.tex | 53 ++++++++++++++++++++-----------------
 1 file changed, 29 insertions(+), 24 deletions(-)

diff --git a/compose-key-cheat-sheet.tex b/compose-key-cheat-sheet.tex
index 5dbe9b9..550ff63 100644
--- a/compose-key-cheat-sheet.tex
+++ b/compose-key-cheat-sheet.tex
@@ -9,13 +9,13 @@
 \usepackage{lmodern}
 
 
+% Keyboard symbols
 \usepackage[os=win]{menukeys}
-% Using this, but see other solution below
-% This option works better with small font sizes
 
 \usepackage{ragged2e} % Make right margin look better
 \raggedright
 
+% Place a rule above our section titles
 \usepackage{titlesec}
 \titleformat{\section}[display]
   {\large\scshape}{\thesection}{}{\hrule\vspace{3pt}}{}
@@ -26,18 +26,22 @@
 \usepackage{enumitem}
 \setlist[description]{
 	style=nextline,
-	font={\bfseries\ttfamily},
+	font={\ttfamily},
 	itemsep=3pt,
 	parsep=0pt,
 	leftmargin=12mm
 	}
+% Make labels in description list not bold
+% See https://latex.org/forum/viewtopic.php?t=4204
+\renewcommand*\descriptionlabel[1]{\hspace\labelsep\normalfont #1}
 
+% Style our headers and footers
 \usepackage{fancyhdr}
 \pagestyle{fancy}
  \fancyhf{}
  \fancyhead[L]{\textbf{A Compose Key Cheat Sheet}}
  \fancyhead[R]{\texttt{https://git.kjodle.net/kjodle/compose-key-cheat-sheet}}
- \fancyfoot[L]{Version 0.2.0 • \today}
+ \fancyfoot[L]{Version 0.3.0 • \today}
  \fancyfoot[R]{Page \thepage}
  \renewcommand{\footrulewidth}{0.4pt}
  
@@ -53,26 +57,15 @@
 
 \usepackage[T1]{fontenc}
 \usepackage[utf8]{inputenc}
-\usepackage{tikz}
-\usetikzlibrary{shadows}
 
-% Not currently used; using «menukeys» package instead
-% See https://tex.stackexchange.com/questions/5226/keyboard-font-for-latex
-\newcommand*\keystroke[1]{%
-  \tikz[baseline=(key.base)]
-    \node[%
-      draw,
-      fill=white,
-      drop shadow={shadow xshift=0.4ex,shadow yshift=-0.2ex,fill=black,opacity=0.35},
-      rectangle,
-      rounded corners=2pt,
-      inner xsep=3pt,
-      inner ysep=0.5pt,
-      line width=0.5pt,
-      font=\footnotesize\ttfamily
-    ](key) {#1\strut}
-  ;
-}
+
+% Place numbers in a circle
+% See https://tex.stackexchange.com/questions/7032/good-way-to-make-textcircled-numbers
+% Can also use «circledsteps» package
+\usepackage{tikz}
+\newcommand*\circled[1]{\tikz[baseline=(char.base)]{
+            \node[shape=circle,draw,inner sep=2pt] (char) {#1};}}
+
 
 % Fonts for symbols
 \usepackage{fourier}
@@ -125,7 +118,19 @@ Some characters may render differently depending on the font used.
 \section*{Math}
 
 \begin{description}
-	\item[•]
+	\item[x x]Times \hfill $\times$
+	\item[- :]Divide \hfill $\div$
+	\item[- ,]Not sign \hfill \textlnot
+	\item[< =]Less than or equal to \hfill $\leq$
+	\item[> =]Greater than or equal to \hfill $\geq$
+	\item[+ -]Plus/minus \hfill $\pm$
+	\item[8 8]Infinity \hfill $\infty$
+	\item[1 2]One-half (similar with other numbers through 9) \hfill \textonehalf
+	\item[\^{} 2]Superscript 2 (also works for other numbers through 9, and some punctuation symbols) \hfill $\Box^2$
+	\item[\_{} 2]Subscript 2 (also works as superscript with other symbols) \hfill $\Box_2$
+	\item[( 2 )]Circled 2 (also works on numbers through 50) \hfill \circled{2}
+	\item[\% o]Per mille sign \hfill \textperthousand
+	\item[N o]Numero symbol \hfill \textnumero
 \end{description}
 
 \section*{Publishing}