replace 3,3 with rows,cols

Author: lucifertrj

site/en/tutorials/audio/simple_audio.ipynb

@@ -360,7 +360,7 @@
     "cols = 3\n",
     "n = rows * cols\n",
     "for i in range(n):\n",
-    "  plt.subplot(3, 3, i+1)\n",
+    "  plt.subplot(rows, cols, i+1)\n",
     "  audio_signal = example_audio[i]\n",
     "  plt.plot(audio_signal)\n",
     "  plt.title(label_names[example_labels[i]])\n",