diff --git a/semester3/numcs/numcs-summary.tex b/semester3/numcs/numcs-summary.tex
index d02b5c2..1fd23ed 100644
--- a/semester3/numcs/numcs-summary.tex
+++ b/semester3/numcs/numcs-summary.tex
@@ -10,7 +10,34 @@
 \startDocument
 \usetcolorboxes
 
+%          ╭────────────────────────────────────────────────╮
+%          │                   Title page                   │
+%          ╰────────────────────────────────────────────────╯
 \textit{Denken vor Rechnen}
 
 
+% ────────────────────────────────────────────────────────────────────
+
+%          ╭────────────────────────────────────────────────╮
+%          │               Table of Contents                │
+%          ╰────────────────────────────────────────────────╯
+\newpage
+\printtoc{ForestGreen}
+
+
+% ────────────────────────────────────────────────────────────────────
+
+%          ╭────────────────────────────────────────────────╮
+%          │                  Main content                  │
+%          ╰────────────────────────────────────────────────╯
+\newsection
+\section{Introduction}
+\input{parts/introduction/rounding-errors.tex}
+\input{parts/introduction/time-complexity.tex}
+\input{parts/introduction/matrix-multiplication.tex}
+
+
+\input{parts/interpolation.tex}
+
+
 \end{document}
diff --git a/semester3/numcs/parts/numpy/tips-and-tricks.tex b/semester3/numcs/parts/numpy/tips-and-tricks.tex
new file mode 100644
index 0000000..e69de29