From fd130ec9731bcf5c661aa1ded7e875d066d254b2 Mon Sep 17 00:00:00 2001
From: CDaut <git@cdaut.de>
Date: Tue, 20 Jun 2023 23:45:45 +0200
Subject: [PATCH] copied diagram

---
 handout/diagrams/geometry_term_diff.tex | 52 +++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 handout/diagrams/geometry_term_diff.tex

diff --git a/handout/diagrams/geometry_term_diff.tex b/handout/diagrams/geometry_term_diff.tex
new file mode 100644
index 0000000..fedafb0
--- /dev/null
+++ b/handout/diagrams/geometry_term_diff.tex
@@ -0,0 +1,52 @@
+\begin{center}
+    \begin{minipage}{0.4\linewidth}
+        \begin{figure}
+            \centering
+            \begin{minipage}{0.5\linewidth}
+                \begin{tikzpicture}[domain=-0.5:2]
+                    \draw[very thin,color=gray] (-0.1,-0.6) grid (2.1,2.1);
+
+                    \draw[->] (-0.2,-0.5) -- (2.2,-0.5) node[right] {$\omega$};
+                    \draw[->] (0,-0.7) -- (0,2.2) node[above] {$V(x,\omega)$};
+
+                    \draw (0,0) -- (1,0) plot coordinates {(0,0)  (1,0)}[color=red];
+                    \draw (1,1) -- (2,1) plot coordinates {(1,1)  (2,1)}[color=red];
+                    \draw (0,0) node[left] {$0$};
+                    \draw (0,1) node[left] {$1$};
+                    \draw (1,-0.7) node[below] {$\omega_0$};
+                \end{tikzpicture}
+            \end{minipage}
+            \hspace{3mm}
+            \begin{minipage}{0.4\linewidth}
+                \caption{Visibility of a point $x$ with respect to $\omega$.}
+                \label{fig:visibility}
+            \end{minipage}
+        \end{figure}
+    \end{minipage}
+    % second diagram
+    \begin{minipage}{0.5\linewidth}
+        \begin{figure}
+            \centering
+            \begin{minipage}{0.5\linewidth}
+                \begin{tikzpicture}[domain=-0.5:2]
+                    \draw[very thin,color=gray] (-0.1,-0.6) grid (2.1,2.1);
+
+                    \draw[->] (-0.2,-0.5) -- (2.2,-0.5) node[right] {$\omega$};
+                    \draw[->] (0,-0.7) -- (0,2.2) node[above] {$\frac{\partial}{\partial\omega}V(x,\omega)$};
+
+                    \draw (0,0) -- (2,0) plot coordinates {(0,0)  (2,0)}[color=red];
+                    \draw (0,0) node[left] {$0$};
+                    \draw (0,1) node[left] {$1$};
+                    \draw (0,2) node[left] {$\infty$};
+                    \draw (1,2) node[color=red] {$\bullet$};
+                    \draw (1,-0.7) node[below] {$\omega_0$};
+                \end{tikzpicture}
+            \end{minipage}
+            \begin{minipage}{0.4\linewidth}
+                \caption{Differentiation of the left graph with respect to $\omega$.}
+                \caption{Differentiation of the left graph with respect to $\omega$.}
+                \label{fig:dirac-delta-spike}
+            \end{minipage}
+        \end{figure}
+    \end{minipage}
+\end{center}
\ No newline at end of file