{
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   "id": "d9d4db58",
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    {
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      "text/plain": [
       "32"
      ]
     },
     "execution_count": 4,
     "metadata": {},
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    }
   ],
   "source": [
    "# How to use functions/packages from book\n",
    "\n",
    "\n",
    "from book.scratch.linear_algebra import dot\n",
    "dot([1,2,3], [4,5,6])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "31aaeb8f",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "def dot(v: Vector, w: Vector) -> float:\n",
      "    \"\"\"Computes v_1 * w_1 + ... + v_n * w_n\"\"\"\n",
      "    assert len(v) == len(w), \"vectors must be same length\"\n",
      "\n",
      "    return sum(v_i * w_i for v_i, w_i in zip(v, w))\n",
      "\n"
     ]
    }
   ],
   "source": [
    "# To print the source code:\n",
    "\n",
    "import inspect\n",
    "lines = inspect.getsource(dot)\n",
    "print(lines)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "24011290",
   "metadata": {},
   "outputs": [],
   "source": []
  }
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