biber chap0

main.tex

@@ -14,6 +14,7 @@
 % add special notation supports
 \usepackage[mathscr]{euscript}
 \usepackage{mathtools}
+\usepackage{braket}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % add image package and directory
@@ -21,7 +22,9 @@
 \usepackage{tikz}
 \graphicspath{{./images/}}
 % dependency graph
-\usetikzlibrary{positioning,arrows.meta}
+\usetikzlibrary{trees,positioning,arrows.meta,backgrounds}
+% floating graph
+\usepackage{float}
 
 % --- Bibliography: biblatex + biber ---
 \usepackage[
@@ -33,9 +36,8 @@
 
 % In the assembled book, we load *all* chapter bib files here,
 % and print one combined bibliography at the end.
-\addbibresource{chapters/chap1.bib}
-\addbibresource{chapters/chap2.bib}
-\addbibresource{chapters/chap3.bib}
+
+\addbibresource{main.bib}
 
 %%
 % Some convenient commands if you need to use integrals
@@ -73,6 +75,7 @@
 
 % Each chapter is in its own file and included as a subfile.
 \subfile{preface}
+\subfile{chapters/chap0}
 \subfile{chapters/chap1}
 \subfile{chapters/chap2}
 \subfile{chapters/chap3}