Clean ipynb 45b76f7

Author: kangwonlee

30_num_int/00_zeroth_order.ipynb

@@ -363,19 +363,51 @@
   },
   {
    "cell_type": "markdown",
-   "source": "### 대화형 탐색<br>Interactive Exploration\n\n분할 수 $n$ 을 바꾸어 가며 직사각형이 반원에 어떻게 근사하는지 관찰해 보자.<br>\nChange the number of partitions $n$ and observe how the rectangles approximate the half circle.",
+   "source": [
+    "### 대화형 탐색<br>Interactive Exploration\n",
+    "\n",
+    "분할 수 $n$ 을 바꾸어 가며 직사각형이 반원에 어떻게 근사하는지 관찰해 보자.<br>\n",
+    "Change the number of partitions $n$ and observe how the rectangles approximate the half circle.\n"
+   ],
    "metadata": {}
   },
   {
    "cell_type": "code",
-   "source": "from ipywidgets import interact, IntSlider\n\n\ndef plot_num_int_0(n):\n    x_curve = py.sort(r * py.cos(py.deg2rad(py.linspace(0, 180, 256))))\n    y_curve = py.sqrt(r**2 - x_curve**2)\n\n    x_bar = py.linspace(-r, r, n + 1)\n    y_bar = py.sqrt(py.abs(r**2 - x_bar**2))\n    dx = x_bar[1] - x_bar[0]\n\n    py.fill_between(x_curve, y_curve, alpha=0.3)\n    py.bar(x_bar[:-1], y_bar[:-1], width=dx, alpha=0.5, align='edge', edgecolor='k')\n\n    area = sum(y_bar[:-1]) * dx\n    py.title(f'n = {n},  Area = {area:.6f},  Error = {abs(area - 1):.2e}')\n    py.axis('equal')\n    py.grid(True)\n    py.show()\n\n\ninteract(plot_num_int_0, n=IntSlider(min=2, max=200, step=1, value=10,\n                                      description='n :'));",
+   "source": [
+    "from ipywidgets import interact, IntSlider\n",
+    "\n",
+    "\n",
+    "def plot_num_int_0(n):\n",
+    "    x_curve = py.sort(r * py.cos(py.deg2rad(py.linspace(0, 180, 256))))\n",
+    "    y_curve = py.sqrt(r**2 - x_curve**2)\n",
+    "\n",
+    "    x_bar = py.linspace(-r, r, n + 1)\n",
+    "    y_bar = py.sqrt(py.abs(r**2 - x_bar**2))\n",
+    "    dx = x_bar[1] - x_bar[0]\n",
+    "\n",
+    "    py.fill_between(x_curve, y_curve, alpha=0.3)\n",
+    "    py.bar(x_bar[:-1], y_bar[:-1], width=dx, alpha=0.5, align='edge', edgecolor='k')\n",
+    "\n",
+    "    area = sum(y_bar[:-1]) * dx\n",
+    "    py.title(f'n = {n},  Area = {area:.6f},  Error = {abs(area - 1):.2e}')\n",
+    "    py.axis('equal')\n",
+    "    py.grid(True)\n",
+    "    py.show()\n",
+    "\n",
+    "\n",
+    "interact(plot_num_int_0, n=IntSlider(min=2, max=200, step=1, value=10,\n",
+    "                                      description='n :'));\n"
+   ],
    "metadata": {},
    "execution_count": null,
    "outputs": []
   },
   {
    "cell_type": "markdown",
-   "source": "$n$을 2에서 200까지 바꾸어 보자. 오차가 어떻게 줄어드는가?<br>\nTry changing $n$ from 2 to 200. How does the error decrease?",
+   "source": [
+    "$n$을 2에서 200까지 바꾸어 보자. 오차가 어떻게 줄어드는가?<br>\n",
+    "Try changing $n$ from 2 to 200. How does the error decrease?\n"
+   ],
    "metadata": {}
   },
   {