importするより前にRZGateを使っていたのを修正

Author: snuffkin

doc/source/notebooks/02_01_basics.ipynb

@@ -338,7 +338,7 @@
    "outputs": [],
    "source": [
     "import pygridsynth\n",
-    "from qiskit.circuit.library import HGate\n",
+    "from qiskit.circuit.library import HGate, RZGate\n",
     "# generate string consisting of {T,H,S,W} which corresponds to Rz(theta) with precision epsilon\n",
     "# W corresponds to global phase shift of pi/4\n",
     "theta = np.random.rand()\n",
@@ -358,7 +358,6 @@
     "unitary = get_unitary_from_circuit(qc)\n",
     "print(\"error: \", np.linalg.norm(get_unitary_from_circuit(qc) - RZGate(theta).to_matrix()))\n",
     "display_complex_matrix(get_unitary_from_circuit(qc), title=\"Unitary of circuit\")\n",
-    "from qiskit.circuit.library import RZGate\n",
     "display_complex_matrix(RZGate(theta).to_matrix(), title=\"Exact Rz\")"
    ]
   },