simple bug fix (#25)

* fix bugs for book6

* fix typo in chapter 5

* matrix operator fix

wrong matrix operator in chapter 5

* matrix operator fix

Author: tshiya731

book/05/Theory/01.ipynb

@@ -34,7 +34,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 1,
    "metadata": {
     "collapsed": true,
     "nbgrader": {
@@ -901,7 +901,7 @@
    "source": [
     "Now let's multiply `my_mat2` x `my_mat1`.\n",
     "\n",
-    "Let's also multiply `my_mat` x `my_mat2` (changed order)"
+    "Let's also multiply `my_mat1` x `my_mat2` (changed order)"
    ]
   },
   {
@@ -1145,7 +1145,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 37,
+   "execution_count": 2,
    "metadata": {
     "collapsed": true
    },
@@ -1166,21 +1166,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 38,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "[[ 0.8 -0.6]\n",
-      " [-0.8 12. ]]\n"
+      "[[-0.2  8.2]\n",
+      " [-0.2 14.2]]\n"
      ]
     }
    ],
    "source": [
     "Mat_C_inv = np.linalg.inv(Mat_C)\n",
-    "Mat_D = (Mat_A*Mat_B)*Mat_C_inv\n",
+    "Mat_D = (Mat_A @ Mat_B) @ Mat_C_inv\n",
     "print(Mat_D)"
    ]
   },
@@ -2243,7 +2243,7 @@
  "metadata": {
   "hide_input": false,
   "kernelspec": {
-   "display_name": "base",
+   "display_name": "mude",
    "language": "python",
    "name": "python3"
   },
@@ -2257,7 +2257,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.13"
+   "version": "3.11.9"
   },
   "latex_envs": {
    "LaTeX_envs_menu_present": true,
@@ -2305,11 +2305,6 @@
     "_Feature"
    ],
    "window_display": false
-  },
-  "vscode": {
-   "interpreter": {
-    "hash": "ad2bdc8ecc057115af97d19610ffacc2b4e99fae6737bb82f5d7fb13d2f2c186"
-   }
   }
  },
  "nbformat": 4,

book/06/Exercises/01.ipynb

@@ -142,8 +142,7 @@
     "import numpy as np\n",
     "import pandas as pd\n",
     "\n",
-    "file_location = (\"https://raw.githubusercontent.com/TUDelft-CITG/\"\n",
-    "                \"learn-python/mike/book/06/Theory/\")\n",
+    "file_location = (\"https://raw.githubusercontent.com/TeachBooks/learn-python/main/book/06/Theory/\")\n",
     "mineral_properties = pd.read_csv(file_location + 'mineral_properties.txt', \n",
     "                  skiprows=1,skipinitialspace=True)\n",
     "mineral_properties['new_column'] = np.nan\n",
@@ -285,8 +284,7 @@
    },
    "outputs": [],
    "source": [
-    "file_location = (\"https://raw.githubusercontent.com/TUDelft-CITG/\"\n",
-    "                \"learn-python/mike/book/06/Exercises/\")\n",
+    "file_location = (\"https://raw.githubusercontent.com/TeachBooks/learn-python/main/book/06/Exercises/\")\n",
     "\n",
     "mountains_8000 = ... #1 \n",
     "cols = ... #2 \n",
@@ -361,8 +359,7 @@
    },
    "outputs": [],
    "source": [
-    "file_location = (\"https://raw.githubusercontent.com/TUDelft-CITG/\"\n",
-    "                \"learn-python/mike/book/06/Exercises/\")\n",
+    "file_location = (\"https://raw.githubusercontent.com/TeachBooks/learn-python/main/book/06/Exercises/\")\n",
     "\n",
     "mountains_7000 = ... # 1\n",
     "df_concat = ... # 2\n",
@@ -476,7 +473,7 @@
    "provenance": []
   },
   "kernelspec": {
-   "display_name": "Python 3 [3.7]",
+   "display_name": "mude",
    "language": "python",
    "name": "python3"
   },
@@ -490,12 +487,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.13"
-  },
-  "vscode": {
-   "interpreter": {
-    "hash": "1fe2f2b718b1108b9c4176932db8a0ead471245140baaa21ea96a4066683e6b2"
-   }
+   "version": "3.11.9"
   }
  },
  "nbformat": 4,