#10 dont test value error cell

numpy.ipynb

@@ -390,18 +390,19 @@
    "metadata": {},
    "outputs": [
     {
-     "ename": "ValueError",
-     "evalue": "matmul: Input operand 1 has a mismatch in its core dimension 0, with gufunc signature (n?,k),(k,m?)->(n?,m?) (size 4 is different from 3)",
+     "ename": "NameError",
+     "evalue": "name 'a' is not defined",
      "output_type": "error",
      "traceback": [
       "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
-      "\u001b[0;31mValueError\u001b[0m                                Traceback (most recent call last)",
-      "Cell \u001b[0;32mIn[22], line 1\u001b[0m\n\u001b[0;32m----> 1\u001b[0m \u001b[43ma\u001b[49m\u001b[43m \u001b[49m\u001b[38;5;241;43m@\u001b[39;49m\u001b[43m \u001b[49m\u001b[43mc\u001b[49m\n",
-      "\u001b[0;31mValueError\u001b[0m: matmul: Input operand 1 has a mismatch in its core dimension 0, with gufunc signature (n?,k),(k,m?)->(n?,m?) (size 4 is different from 3)"
+      "\u001b[0;31mNameError\u001b[0m                                 Traceback (most recent call last)",
+      "Cell \u001b[0;32mIn[1], line 2\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[38;5;66;03m#|notest\u001b[39;00m\n\u001b[0;32m----> 2\u001b[0m \u001b[43ma\u001b[49m \u001b[38;5;241m@\u001b[39m c\n",
+      "\u001b[0;31mNameError\u001b[0m: name 'a' is not defined"
      ]
     }
    ],
    "source": [
+    "#| notest\n",
     "a @ c"
    ]
   },