diff --git a/semester3/analysis-ii/analysis-ii-cheat-sheet.pdf b/semester3/analysis-ii/analysis-ii-cheat-sheet.pdf
index 7a87bf1..57526b1 100644
Binary files a/semester3/analysis-ii/analysis-ii-cheat-sheet.pdf and b/semester3/analysis-ii/analysis-ii-cheat-sheet.pdf differ
diff --git a/semester3/analysis-ii/analysis-ii-cheat-sheet.tex b/semester3/analysis-ii/analysis-ii-cheat-sheet.tex
index 764d522..e14639e 100644
--- a/semester3/analysis-ii/analysis-ii-cheat-sheet.tex
+++ b/semester3/analysis-ii/analysis-ii-cheat-sheet.tex
@@ -4,11 +4,13 @@
 \input{\dir/include.tex}
 \load{recommended}
 
-\setup{Analysis II}
+\setupCheatSheet{Analysis II}
 
 \begin{document}
-\startDocument
+\maketitle
 \usetcolorboxes
+\setcounter{numberingConfig}{3}
+\setcounter{numberSubsections}{1}
 
 
 %          ╭────────────────────────────────────────────────╮
@@ -56,13 +58,19 @@ If you discover any errors, please open an issue or fix the issue yourself and t
 
 This Cheat-Sheet was designed with the HS2025 page limit of 10 A4 pages in mind. 
 Thus, the whole Cheat-Sheet can be printed full-sized, if you exclude the title page, contents and this page.
+You could also print it as two A5 pages per A4 page and also print the 
+\color{MidnightBlue}\fbox{\href{https://github.com/janishutz/eth-summaries/blob/master/semester2/analysis-i/cheat-sheet.pdf}{Analysis I summary}}\color{black} 
+\smallhspace in the same manner, allowing you to bring both to the exam
 
 
 
 %          ╭────────────────────────────────────────────────╮
 %          │                    Content                     │
 %          ╰────────────────────────────────────────────────╯
-\input{parts/diff-eq.tex}
+\newsection
+\section{Differential Equations}
+\input{parts/diffeq/00_intro.tex}
+
 
 
 \end{document}
diff --git a/semester3/analysis-ii/parts/diff-eq.tex b/semester3/analysis-ii/parts/diff-eq.tex
deleted file mode 100644
index b08b52c..0000000
--- a/semester3/analysis-ii/parts/diff-eq.tex
+++ /dev/null
@@ -1,2 +0,0 @@
-\newsection
-\section{Differential Equations}
diff --git a/semester3/analysis-ii/parts/diffeq/00_intro.tex b/semester3/analysis-ii/parts/diffeq/00_intro.tex
new file mode 100644
index 0000000..fe40fc7
--- /dev/null
+++ b/semester3/analysis-ii/parts/diffeq/00_intro.tex
@@ -0,0 +1,7 @@
+\subsection{Introduction}
+\shortex $f'(x) = f(x)$ has only solution $f(x) = ae^x$ for any $a \in \R$;
+$f' - a = 0$ has only solution $f(x) = \int_{x_0}^{x} a(t) \smallhspace \dx t$
+
+\setcounter{all}{6}
+\shorttheorem Let $F: \R^2 \rightarrow \R$ be a differential function of two variables. Let $x_0 \in \R$ and $y_0 \in \R^2$.
+The Ordinary Differential Equation (ODE) $y' = F(x, y)$ has a unique solution $f$ defined on a ``largest'' interval $I$ that contains $x_0$ such that $y_0 = f(x_0)$
diff --git a/semester3/analysis-ii/parts/diffeq/linear-ode/00_intro.tex b/semester3/analysis-ii/parts/diffeq/linear-ode/00_intro.tex
new file mode 100644
index 0000000..1b295b1
--- /dev/null
+++ b/semester3/analysis-ii/parts/diffeq/linear-ode/00_intro.tex
@@ -0,0 +1,2 @@
+\newsection
+\subsection{Linear Differential Equations}
diff --git a/semester3/analysis-ii/parts/diffeq/linear-ode/01_order-one.tex b/semester3/analysis-ii/parts/diffeq/linear-ode/01_order-one.tex
new file mode 100644
index 0000000..7fd74fc
--- /dev/null
+++ b/semester3/analysis-ii/parts/diffeq/linear-ode/01_order-one.tex
@@ -0,0 +1,2 @@
+\newsection
+\subsection{Linear Differential Equations of first order}
diff --git a/semester3/analysis-ii/parts/diffeq/linear-ode/02_constant-coefficient.tex b/semester3/analysis-ii/parts/diffeq/linear-ode/02_constant-coefficient.tex
new file mode 100644
index 0000000..e69de29
diff --git a/semester3/analysis-ii/parts/diffeq/linear-ode/03_harmonic-oscilator.tex b/semester3/analysis-ii/parts/diffeq/linear-ode/03_harmonic-oscilator.tex
new file mode 100644
index 0000000..e69de29
diff --git a/semester3/analysis-ii/parts/diffeq/linear-ode/04_other-methods.tex b/semester3/analysis-ii/parts/diffeq/linear-ode/04_other-methods.tex
new file mode 100644
index 0000000..e69de29
diff --git a/semester3/analysis-ii/parts/vectors/differentiation/intro.tex b/semester3/analysis-ii/parts/vectors/differentiation/intro.tex
new file mode 100644
index 0000000..e69de29
diff --git a/semester3/analysis-ii/parts/vectors/integration/intro.tex b/semester3/analysis-ii/parts/vectors/integration/intro.tex
new file mode 100644
index 0000000..e69de29