Code Snippets

gistfile1.txt

{
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    {
     "name": "stdout",
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     "text": [
      "[1 2 3 4]\n"
     ]
    }
   ],
   "source": [
    "import numpy as np\n",
    "a = np.array([1,2,3,4])\n",
    "print (a)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "2499522.8054\n",
      "Time with Vectorization :28.001785278320312ms\n",
      "2499522.8054\n",
      "For loop :5648.353099822998ms\n"
     ]
    }
   ],
   "source": [
    "import time\n",
    "\n",
    "a = np.random.rand(10000000)\n",
    "b = np.random.rand(10000000)\n",
    "\n",
    "tic = time.time()\n",
    "c = np.dot(a,b)\n",
    "toc = time.time()\n",
    "print(c)\n",
    "print(\"Time with Vectorization :\" + str(1000*(toc-tic)) +\"ms\")\n",
    "\n",
    "c = 0\n",
    "tic = time.time()\n",
    "for i in range(10000000):\n",
    "    c += a[i]*b[i]\n",
    "toc = time.time()\n",
    "print(c)\n",
    "print(\"For loop :\" + str(1000*(toc-tic)) +\"ms\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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