【Python】Numpyで配列を足し算する

numpy-array.ipynb

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    "import numpy as np"
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    "a=np.random.random(10**7)"
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    "b=np.random.random(10**7)"
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   "source": [
    "#for文で各要素を計算した場合"
   ]
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     "text": [
      "CPU times: user 375 ms, sys: 15.8 ms, total: 390 ms\n",
      "Wall time: 392 ms\n"
     ]
    }
   ],
   "source": [
    "%time for i in range(10**6): a[i] + b[i]"
   ]
  },
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   "cell_type": "code",
   "execution_count": 6,
   "metadata": {
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   "source": [
    "#配列を足し算した場合"
   ]
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   "execution_count": 7,
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      "CPU times: user 27.1 ms, sys: 24 ms, total: 51.1 ms\n",
      "Wall time: 50.8 ms\n"
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     "data": {
      "text/plain": [
       "array([ 1.61374181,  1.15528051,  0.4731171 , ...,  1.07371708,\n",
       "        0.90053945,  0.79271722])"
      ]
     },
     "execution_count": 7,
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   "source": [
    "%time a + b"
   ]
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