Updating vector2d

Author: AllenDowney

01-data-model/vector2d.ipynb

@@ -78,7 +78,7 @@
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 1
+     "prompt_number": null
     },
     {
      "cell_type": "markdown",
@@ -97,17 +97,8 @@
      ],
      "language": "python",
      "metadata": {},
-     "outputs": [
-      {
-       "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 2,
-       "text": [
-        "Vector(4, 5)"
-       ]
-      }
-     ],
-     "prompt_number": 2
+     "outputs": [],
+     "prompt_number": null
     },
     {
      "cell_type": "markdown",
@@ -125,17 +116,8 @@
      ],
      "language": "python",
      "metadata": {},
-     "outputs": [
-      {
-       "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 3,
-       "text": [
-        "5.0"
-       ]
-      }
-     ],
-     "prompt_number": 3
+     "outputs": [],
+     "prompt_number": null
     },
     {
      "cell_type": "markdown",
@@ -152,17 +134,8 @@
      ],
      "language": "python",
      "metadata": {},
-     "outputs": [
-      {
-       "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 4,
-       "text": [
-        "Vector(9, 12)"
-       ]
-      }
-     ],
-     "prompt_number": 4
+     "outputs": [],
+     "prompt_number": null
     },
     {
      "cell_type": "markdown",
@@ -182,7 +155,7 @@
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 5
+     "prompt_number": null
     },
     {
      "cell_type": "markdown",
@@ -199,17 +172,8 @@
      ],
      "language": "python",
      "metadata": {},
-     "outputs": [
-      {
-       "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 6,
-       "text": [
-        "'Vector(3, 4)'"
-       ]
-      }
-     ],
-     "prompt_number": 6
+     "outputs": [],
+     "prompt_number": null
     },
     {
      "cell_type": "markdown",
@@ -226,17 +190,8 @@
      ],
      "language": "python",
      "metadata": {},
-     "outputs": [
-      {
-       "metadata": {},
-       "output_type": "pyout",
-       "prompt_number": 7,
-       "text": [
-        "'Vector(3, 4)'"
-       ]
-      }
-     ],
-     "prompt_number": 7
+     "outputs": [],
+     "prompt_number": null
     },
     {
      "cell_type": "markdown",
@@ -263,16 +218,8 @@
      ],
      "language": "python",
      "metadata": {},
-     "outputs": [
-      {
-       "output_type": "stream",
-       "stream": "stdout",
-       "text": [
-        "Vector(3, 4)\n"
-       ]
-      }
-     ],
-     "prompt_number": 8
+     "outputs": [],
+     "prompt_number": null
     },
     {
      "cell_type": "markdown",
@@ -291,7 +238,7 @@
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 9
+     "prompt_number": null
     },
     {
      "cell_type": "markdown",
@@ -311,7 +258,7 @@
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 10
+     "prompt_number": null
     },
     {
      "cell_type": "code",
@@ -322,7 +269,7 @@
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 11
+     "prompt_number": null
     },
     {
      "cell_type": "code",
@@ -333,7 +280,7 @@
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 12
+     "prompt_number": null
     },
     {
      "cell_type": "code",
@@ -344,7 +291,7 @@
      "language": "python",
      "metadata": {},
      "outputs": [],
-     "prompt_number": 13
+     "prompt_number": null
     },
     {
      "cell_type": "code",