--- a/ChengsongTanPhdThesis/main.tex	Wed Aug 17 01:09:13 2022 +0100
+++ b/ChengsongTanPhdThesis/main.tex	Wed Aug 17 22:59:15 2022 +0100
@@ -43,6 +43,7 @@
 %\usepackage{fdsymbol} % Loads unicode-math
 
 \usepackage{verbatim}
+\usepackage{float}
 \usepackage{mathpazo} % Use the Palatino font by default
 \usepackage{hyperref}
 \usepackage{lipsum}
@@ -94,6 +95,7 @@
 \usepackage{tikz}
 \usetikzlibrary{automata, positioning, calc}
 \usetikzlibrary{arrows}
+\usetikzlibrary{shapes.misc}
 \usetikzlibrary{fit,
                 shapes.geometric,
 		patterns,