Import matplotlib..

Author: thangleiter

doc/source/examples/advanced_concatenation.ipynb

@@ -275,6 +275,7 @@
    "source": [
     "# Clean up from before to have a clean slate for demonstration purposes\n",
     "from itertools import chain\n",
+    "\n",
     "for key, pulse in chain(X2.items(), Y2.items()):\n",
     "    pulse.cleanup('frequency dependent')\n",
     "    pulse.cache_filter_function(omega[key], cache_intermediates=True,\n",
@@ -299,6 +300,8 @@
    "metadata": {},
    "outputs": [],
    "source": [
+    "import matplotlib.pyplot as plt\n",
+    "\n",
     "for key, pulse in H.items():\n",
     "    fig, axes = plt.subplots(3, 3, sharex=True, sharey=False,\n",
     "                            figsize=(9, 6))\n",