diff --git a/semester3/numcs/numcs-summary.pdf b/semester3/numcs/numcs-summary.pdf
index 17cd6cf..0ba0ac8 100644
Binary files a/semester3/numcs/numcs-summary.pdf and b/semester3/numcs/numcs-summary.pdf differ
diff --git a/semester3/numcs/numcs-summary.tex b/semester3/numcs/numcs-summary.tex
index 075f461..77cfde1 100644
--- a/semester3/numcs/numcs-summary.tex
+++ b/semester3/numcs/numcs-summary.tex
@@ -163,4 +163,10 @@ Moral of the story: Use descriptive variable names and do NOT use $t$, $tt$, $tt
 \section{Intermezzo: Lineare Algebra}
 \input{parts/04_linalg/00_intro.tex}
 
+\newsection
+\section{Ausgleichsrechnung}
+\input{parts/05_curve-fitting/00_intro.tex}
+\input{parts/05_curve-fitting/01_linear/00_intro.tex}
+
+
 \end{document}
diff --git a/semester3/numcs/parts/05_linear-curve-fitting/00_intro.tex b/semester3/numcs/parts/04_linalg/01_LU.tex
similarity index 100%
rename from semester3/numcs/parts/05_linear-curve-fitting/00_intro.tex
rename to semester3/numcs/parts/04_linalg/01_LU.tex
diff --git a/semester3/numcs/parts/04_linalg/02_qr.tex b/semester3/numcs/parts/04_linalg/02_qr.tex
new file mode 100644
index 0000000..e69de29
diff --git a/semester3/numcs/parts/04_linalg/03_svd.tex b/semester3/numcs/parts/04_linalg/03_svd.tex
new file mode 100644
index 0000000..e69de29
diff --git a/semester3/numcs/parts/05_curve-fitting/00_intro.tex b/semester3/numcs/parts/05_curve-fitting/00_intro.tex
new file mode 100644
index 0000000..9640849
--- /dev/null
+++ b/semester3/numcs/parts/05_curve-fitting/00_intro.tex
@@ -0,0 +1,3 @@
+Der Begriff ``Ausgleichsrechnung'' mag vielleicht nicht bekannt sein, jedoch macht die Englische Übersetzung klar, was der Inhalt dieses Abschnitts ist: \bi{Curve Fitting}.
+
+Wir werden also (unter anderem) Least-Squares-Probleme behandeln
diff --git a/semester3/numcs/parts/05_curve-fitting/01_linear/00_intro.tex b/semester3/numcs/parts/05_curve-fitting/01_linear/00_intro.tex
new file mode 100644
index 0000000..14c7a9a
--- /dev/null
+++ b/semester3/numcs/parts/05_curve-fitting/01_linear/00_intro.tex
@@ -0,0 +1 @@
+\subsection{Lineare Ausgleichsrechnung}
diff --git a/semester3/numcs/parts/05_curve-fitting/02_non-linear/00_intro.tex b/semester3/numcs/parts/05_curve-fitting/02_non-linear/00_intro.tex
new file mode 100644
index 0000000..e69de29