diff --git a/notebooks/week-2.ipynb b/notebooks/week-2.ipynb
index 0c178b1..a4f9f52 100644
--- a/notebooks/week-2.ipynb
+++ b/notebooks/week-2.ipynb
@@ -38,6 +38,7 @@
     "\n",
     "from src.maths.diagrams import *;\n",
     "from src.maths.sets import *;\n",
+    "from src.widgets import *;\n",
     "\n",
     "np.random.seed(8007253); # zur Wiederholbarkeit"
    ]
@@ -48,6 +49,20 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "FunctionDiagramWidget(\n",
+    "    N = 2,\n",
+    "    fnames   = ['f', 'g', 'h'],\n",
+    "    setnames = ['X', 'Y', 'Z', 'W'],\n",
+    ").run();"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# ohne Zufallserzeugung:\n",
     "X = ['a', 'b', 'c', 'd', 'e'];\n",
     "Y = [2, 3, 5, 7, 11, 13, 17];\n",
     "Z = ['α', 'β', 'γ', 'δ'];\n",
@@ -59,24 +74,6 @@
     ");\n",
     "comp.draw(show_labels=True);"
    ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "X = randomset_alphabet(N=3);\n",
-    "Y = randomset_integers(N=5);\n",
-    "Z = randomset_greek(N=7);\n",
-    "f = random_function(X, Y, injective=True);\n",
-    "g = random_function(Y, Z, injective=True);\n",
-    "comp = Functions(\n",
-    "    Function(name=('f', 'X', 'Y'), domain=X, codomain=Y, fct=f),\n",
-    "    Function(name=('g', 'Y', 'Z'), domain=Y, codomain=Z, fct=g),\n",
-    ");\n",
-    "comp.draw(show_labels=False);"
-   ]
   }
  ],
  "metadata": {