Fix tutorial errors

Author: jaeyoo

docs/tutorials/barren_plateaus.ipynb

@@ -12,7 +12,7 @@
     },
     {
       "cell_type": "code",
-      "execution_count": 0,
+      "execution_count": null,
       "metadata": {
         "cellView": "form",
         "colab": {},
@@ -89,7 +89,7 @@
     },
     {
       "cell_type": "code",
-      "execution_count": 0,
+      "execution_count": null,
       "metadata": {
         "colab": {},
         "colab_type": "code",
@@ -112,7 +112,7 @@
     },
     {
       "cell_type": "code",
-      "execution_count": 0,
+      "execution_count": null,
       "metadata": {
         "colab": {},
         "colab_type": "code",
@@ -125,7 +125,7 @@
     },
     {
       "cell_type": "code",
-      "execution_count": 0,
+      "execution_count": null,
       "metadata": {
         "colab": {},
         "colab_type": "code",
@@ -150,7 +150,7 @@
     },
     {
       "cell_type": "code",
-      "execution_count": 0,
+      "execution_count": null,
       "metadata": {
         "colab": {},
         "colab_type": "code",
@@ -202,7 +202,7 @@
     },
     {
       "cell_type": "code",
-      "execution_count": 0,
+      "execution_count": null,
       "metadata": {
         "colab": {},
         "colab_type": "code",
@@ -278,7 +278,7 @@
     },
     {
       "cell_type": "code",
-      "execution_count": 0,
+      "execution_count": null,
       "metadata": {
         "colab": {},
         "colab_type": "code",
@@ -297,7 +297,7 @@
         "    # Prep the inputs as tensors\n",
         "    circuit_tensor = tfq.convert_to_tensor(circuits)\n",
         "    values_tensor = tf.convert_to_tensor(\n",
-        "        np.random.uniform(0, 2 * np.pi, (n_circuits, 1)).astype(float))\n",
+        "        np.random.uniform(0, 2 * np.pi, (n_circuits, 1)).astype(np.float32))\n",
         "\n",
         "    # Use TensorFlow GradientTape to track gradients.\n",
         "    with tf.GradientTape() as g:\n",
@@ -327,7 +327,7 @@
     },
     {
       "cell_type": "code",
-      "execution_count": 0,
+      "execution_count": null,
       "metadata": {
         "colab": {},
         "colab_type": "code",
@@ -399,7 +399,7 @@
     },
     {
       "cell_type": "code",
-      "execution_count": 0,
+      "execution_count": null,
       "metadata": {
         "colab": {},
         "colab_type": "code",
@@ -455,7 +455,7 @@
     },
     {
       "cell_type": "code",
-      "execution_count": 0,
+      "execution_count": null,
       "metadata": {
         "colab": {},
         "colab_type": "code",
@@ -511,6 +511,15 @@
       "display_name": "Python 3",
       "language": "python",
       "name": "python3"
+    },
+    "language_info": {
+      "name": "python",
+      "version": "3.10.9 (main, Dec  7 2022, 13:47:07) [GCC 12.2.0]"
+    },
+    "vscode": {
+      "interpreter": {
+        "hash": "916dbcbb3f70747c44a77c7bcd40155683ae19c65e1c03b4aa3499c5328201f1"
+      }
     }
   },
   "nbformat": 4,

docs/tutorials/gradients.ipynb

@@ -99,7 +99,7 @@
       },
       "outputs": [],
       "source": [
-        "!pip install tensorflow==2.11.0"
+        "!pip install tensorflow==2.7.0"
       ]
     },
     {
@@ -122,7 +122,7 @@
       },
       "outputs": [],
       "source": [
-        "!pip install tensorflow-quantum==0.7.3"
+        "!pip install tensorflow-quantum==0.7.2"
       ]
     },
     {