numpy_chapter_2_5_3.ipynb

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   "source": [
    "import numpy as np"
   ]
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    {
     "data": {
      "text/plain": [
       "'1.15.4'"
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    "np.__version__"
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   "source": [
    "## 예제 2-5-3-1  선형 독립 구하기"
   ]
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   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [],
   "source": [
    "import sympy "
   ]
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   "outputs": [],
   "source": [
    "x =  np.array([[0,0, 8],[ 2,4,3], [3,6,5], [4,8,4]])"
   ]
  },
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   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
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   "source": [
    "reduced_form, inds = sympy.Matrix(x).rref()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "Matrix([\n",
       "[1, 2, 0],\n",
       "[0, 0, 1],\n",
       "[0, 0, 0],\n",
       "[0, 0, 0]])"
      ]
     },
     "execution_count": 7,
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    "reduced_form"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
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    {
     "data": {
      "text/plain": [
       "(0, 2)"
      ]
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     "execution_count": 8,
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     "output_type": "execute_result"
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    "inds"
   ]
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      "text/plain": [
       "array([0, 0, 8])"
      ]
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     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
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   ],
   "source": [
    "x[0]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "array([3, 6, 5])"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "x[2]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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