diff --git a/test.ipynb b/test.ipynb
index f743b5c..7bd57e8 100644
--- a/test.ipynb
+++ b/test.ipynb
@@ -135,6 +135,12 @@
      "prompt_number": 4
     },
     {
+     "cell_type": "markdown",
+     "source": [
+      "$e^{i\\pi} + 1 = 0$"
+     ]
+    },
+    {
      "cell_type": "code",
      "collapsed": true,
      "input": [],