commit 2358fdf65ebc99b311ebc6811f74fe845142ce10
Author: Sven Riwoldt <sven.riwoldt@web.de>
Date:   Sat Jan 3 11:36:57 2026 +0100

    Init

diff --git a/Mengen.py b/Mengen.py
new file mode 100644
index 0000000..d3942bd
--- /dev/null
+++ b/Mengen.py
@@ -0,0 +1,27 @@
+from matplotlib_venn import venn2
+import matplotlib.pyplot as plt
+
+
+def vereinigung(a, b, c={}, d={}):
+    print (len(c))
+    print(len(d))
+    if len(c) != 0:
+        #venn3([a, b, c], set_labels=('A', 'B', 'C'))
+        #plt.title("Venn-Diagramm mit drei Mengen")
+        #plt.show()
+        return a.union(b, c)
+    else:
+        return a.union(b)
+
+
+#print(vereinigung({1, 2, 3, 4}, {1, 5, 6}, {}))
+print(vereinigung({1, 2, 3, 4}, {1, 5, 6}))
+
+print(vereinigung({1, 2, 3, 4}, {1, 5, 6},{6, 7, 8, 9, 10}))
+
+a = set([1, 2, 3, 4])
+b = set([1, 5, 6])
+c = set([6, 9])
+venn2([a,c], set_labels=('A','C'))
+plt.title("Venn-Diagramm mit zwei Mengen")
+plt.show()
diff --git a/Test01.py b/Test01.py
new file mode 100644
index 0000000..9336e81
--- /dev/null
+++ b/Test01.py
@@ -0,0 +1,25 @@
+from matplotlib import pyplot as plt
+from matplotlib_venn import venn3
+
+# Drei Mengen definieren
+A = set([1, 2, 3, 4, 5])
+B = set([4, 5, 6, 7, 8])
+C = set([2, 5, 7, 9])
+
+venn = venn3([A, B, C], set_labels=('Menge A', 'Menge B', 'Menge C'))
+
+# Hilfsfunktion: Menge schön als Text ausgeben
+def fmt(s):
+    return "\n".join(map(str, s)) if s else ""
+
+# Labels mit tatsächlichen Elementen überschreiben
+venn.get_label_by_id('100').set_text(fmt(A - B - C))          # nur A
+venn.get_label_by_id('010').set_text(fmt(B - A - C))          # nur B
+venn.get_label_by_id('001').set_text(fmt(C - A - B))          # nur C
+venn.get_label_by_id('110').set_text(fmt(A & B - C))          # A ∩ B
+venn.get_label_by_id('101').set_text(fmt(A & C - B))          # A ∩ C
+venn.get_label_by_id('011').set_text(fmt(B & C - A))          # B ∩ C
+venn.get_label_by_id('111').set_text(fmt(A & B & C))          # A ∩ B ∩ C
+
+plt.title("Venn-Diagramm mit allen Elementen")
+plt.show()