Update

Author: carlosal1015

pde-book/hplgit/vibration.ipynb

@@ -534,9 +534,7 @@
     "    u[1] = u[0] - 0.5 * dt**2 * (w * (1 - w**2 * dt**2 / 24)) ** 2 * u[0]\n",
     "    for n in range(1, Nt):\n",
     "        u[n + 1] = (\n",
-    "            2 * u[n]\n",
-    "            - u[n - 1]\n",
-    "            - dt**2 * (w * (1 - w**2 * dt**2 / 24)) ** 2 * u[n]\n",
+    "            2 * u[n] - u[n - 1] - dt**2 * (w * (1 - w**2 * dt**2 / 24)) ** 2 * u[n]\n",
     "        )\n",
     "    return t, u"
    ]

pde-book/jax/jax.ipynb

@@ -48,12 +48,7 @@
     "    ls = (\n",
     "        b1 * (mu**2 + v - 2.0 * a1 * mu + a1**2)\n",
     "        + b2\n",
-    "        * (\n",
-    "            (mu**3 + 3.0 * mu * v)\n",
-    "            - 3.0 * a2 * (mu**2 + v)\n",
-    "            + 3.0 * (a2**2) * mu\n",
-    "            - a2**3\n",
-    "        )\n",
+    "        * ((mu**3 + 3.0 * mu * v) - 3.0 * a2 * (mu**2 + v) + 3.0 * (a2**2) * mu - a2**3)\n",
     "        + 4.0 / v\n",
     "    )\n",
     "    return ls"

pde-book/notes/Untitled.ipynb

@@ -7,12 +7,12 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "from tqdm.notebook import tqdm\n",
+    "import time\n",
+    "\n",
     "import matplotlib.pyplot as plt\n",
+    "import numpy as np\n",
     "from IPython.display import display\n",
-    "\n",
-    "import time\n",
-    "import numpy as np"
+    "from tqdm.notebook import tqdm"
    ]
   },
   {