sympy.ipynb

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   "source": [
    "import sympy\n",
    "sympy.init_printing()"
   ]
  },
  {
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    {
     "data": {
      "text/latex": [
       "$$f{\\left (x_{0} \\right )} + \\left(x - x_{0}\\right) \\left. \\frac{d}{d \\xi_{1}} f{\\left (\\xi_{1} \\right )} \\right|_{\\substack{ \\xi_{1}=x_{0} }} + \\mathcal{O}\\left(\\left(x - x_{0}\\right)^{2}; x\\rightarrowx_{0}\\right)$$"
      ],
      "text/plain": [
       "                 ⎛ d        ⎞│         ⎛        2        ⎞\n",
       "f(x₀) + (x - x₀)⋅⎜───(f(ξ₁))⎟│      + O⎝(x - x₀) ; x → x₀⎠\n",
       "                 ⎝dξ₁       ⎠│ξ₁=x₀                       "
      ]
     },
     "execution_count": 48,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "x, x0 = sympy.symbols('x x0')\n",
    "f = sympy.Function('f')\n",
    "g = sympy.series(f(x), x, x0, 2)\n",
    "g"
   ]
  },
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