Remove QHACK banner (#98)

* Remove QHACK banner * format (due to new version of black)
PennyLaneAI · Feb 28, 2022 · e1e3308 · e1e3308
1 parent 64e877c
commit e1e3308
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Showing 2 changed files with 2 additions and 5 deletions.
diff --git a/doc/xanadu_theme/header.html b/doc/xanadu_theme/header.html
@@ -41,9 +41,6 @@
       <li class="nav-item">
         <a class="nav-link" href="https://pennylane.ai/blog">Blog</a>
       </li>
-      <li class="nav-item">
-        <a class="nav-link" href="https://qhack.ai"><img src="https://pennylane.ai/img/qhack_plain_black.png"></a>
-      </li>
     </ul>
     <!-- Links -->
 

diff --git a/pennylane_forest/device.py b/pennylane_forest/device.py
@@ -277,7 +277,7 @@ def mat_vec_product(self, mat, vec, device_wire_labels):
         """
         num_wires = len(device_wire_labels)
 
-        if mat.shape != (2 ** num_wires, 2 ** num_wires):
+        if mat.shape != (2**num_wires, 2**num_wires):
             raise ValueError(
                 f"Please specify a {2 ** num_wires} x {2 ** num_wires} matrix for {num_wires} wires."
             )
@@ -336,7 +336,7 @@ def mat_vec_product(self, mat, vec, device_wire_labels):
         inv_perm = np.argsort(perm)
         state_multi_index = np.transpose(tdot, inv_perm)
 
-        return np.reshape(state_multi_index, 2 ** self.num_wires)
+        return np.reshape(state_multi_index, 2**self.num_wires)
 
     def analytic_probability(self, wires=None):
         """Return the (marginal) probability of each computational basis