diff --git a/module2/exo1/toy_notebook_en.ipynb b/module2/exo1/toy_notebook_en.ipynb
index 2536ef7bc996f07b842783404d6cf1d474c30e90..75cb8fbd6b3b7dc24e68da66e6c7d9e7c8a1f9eb 100644
--- a/module2/exo1/toy_notebook_en.ipynb
+++ b/module2/exo1/toy_notebook_en.ipynb
@@ -61,6 +61,7 @@
     "import numpy as np\n",
     "np.random.seed(seed=42)\n",
     "N = 10000\n",
+    "\n",
     "x = np.random.uniform(size=N, low=0, high=1)\n",
     "theta = np.random.uniform(size=N, low=0, high=pi/2)\n",
     "2/(sum((x+np.sin(theta))>1)/N)"
@@ -98,16 +99,18 @@
     "\n",
     "np.random.seed(seed=42)\n",
     "N = 1000\n",
-    "x = np.random.uniform(size=N, low=0, high=1)\n",
-    "y = np.random.uniform(size=N, low=0, high=1)\n",
+    "\n",
+    "\n",
+    "x = np.random.uniform(size=N,low=0,high=1)\n",
+    "y = np.random.uniform(size=N,low=0,high=1)\n",
     "\n",
     "accept = (x*x+y*y) <= 1\n",
-    "reject = np.logical_not(accept)\n",
+    "reject =np.logical_not(accept)\n",
     "\n",
     "fig, ax = plt.subplots(1)\n",
-    "ax.scatter(x[accept], y[accept], c='b', alpha=0.2, edgecolor=None)\n",
-    "ax.scatter(x[reject], y[reject], c='r', alpha=0.2, edgecolor=None)\n",
-    "ax.set_aspect('equal')"
+    "ax.scatter(x[accept], y[accept], c='b',  alpha=0.2, edgecolor=None)\n",
+    "ax.scatter(x[reject], y[reject], c='r' , alpha=0.2, edgecolor=None)\n",
+    "ax.set_aspect('equal') "
    ]
   },
   {