[pre-commit.ci] auto fixes from pre-commit.com hooks

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Author: pre-commit-ci[bot]

content/week01_intro/cleanup_bessel.ipynb

@@ -20,33 +20,36 @@
     "from numpy import *\n",
     "import matplotlib.pyplot as plt\n",
     "\n",
-    "Xmax = 40.\n",
+    "Xmax = 40.0\n",
     "Xmin = 0.25\n",
-    "step = 0.1                                 # Global class variables\n",
-    "order = 10; start = 50       # Plot j_order\n",
-    "graph1, ax1 = plt.subplots(figsize = (5, 5))\n",
-    "ax1.set_title('Sperical Bessel, \\\n",
-    "               L = 1 (red), 10')\n",
-    "ax1.set_xlabel(\"x\"); ax1.set_ylabel('j(x)')\n",
-    "ax1.set_xlim(left=Xmin , \\\n",
-    "             right=Xmax)\n",
-    "ax1.set_ylim(bottom=-0.2 , top=0.5)\n",
-    "\n",
-    "\n",
-    "def down(x, n, m):                   # Method down, recurs downward\n",
-    "    j = zeros( (start   +   2), float)\n",
-    "    j[m   +   1] = j[m] = 1.                  # Start with anything\n",
-    "    for k in range(m, 0,  -1):\n",
-    "        j[k - 1] = ( (2.*k + 1.)/x)*j[k] - j[k + 1]\n",
-    "    scale = (sin(x)/x)/j[0]          # Scale solution to known j[0]\n",
+    "step = 0.1  # Global class variables\n",
+    "order = 10\n",
+    "start = 50  # Plot j_order\n",
+    "graph1, ax1 = plt.subplots(figsize=(5, 5))\n",
+    "ax1.set_title(\n",
+    "    \"Spherical Bessel, \\\n",
+    "               L = 1 (red), 10\"\n",
+    ")\n",
+    "ax1.set_xlabel(\"x\")\n",
+    "ax1.set_ylabel(\"j(x)\")\n",
+    "ax1.set_xlim(left=Xmin, right=Xmax)\n",
+    "ax1.set_ylim(bottom=-0.2, top=0.5)\n",
+    "\n",
+    "\n",
+    "def down(x, n, m):  # Method down, recurs downward\n",
+    "    j = zeros((start + 2), float)\n",
+    "    j[m + 1] = j[m] = 1.0  # Start with anything\n",
+    "    for k in range(m, 0, -1):\n",
+    "        j[k - 1] = ((2.0 * k + 1.0) / x) * j[k] - j[k + 1]\n",
+    "    scale = (sin(x) / x) / j[0]  # Scale solution to known j[0]\n",
     "    return j[n] * scale\n",
     "\n",
     "\n",
     "for x in arange(Xmin, Xmax, step):\n",
     "    ax1.plot(x, down(x, order, start), \"r.\")\n",
     "\n",
     "for x in arange(Xmin, Xmax, step):\n",
-    "    ax1.plot(x, down(x,1,start), \"g.\")\n",
+    "    ax1.plot(x, down(x, 1, start), \"g.\")\n",
     "\n",
     "plt.show()"
    ]