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     "text": [
      "Моя матрица 2x2:\n",
      "[[ 5  7]\n",
      " [ 9 10]]\n",
      "\n",
      "Тестирую linspace:\n",
      "Массив от 0 до 10 с 5 элементами:\n",
      "[ 0.   2.5  5.   7.5 10. ]\n",
      "\n",
      "Случайные числа из randn:\n",
      "[ 0.16121834  0.8534192  -1.17185391]\n",
      "\n",
      "Умножаю матрицу на саму себя через dot:\n",
      "Результат:\n",
      "[[ 88 105]\n",
      " [135 163]]\n",
      "\n",
      "Сумма всех элементов матрицы:\n",
      "31\n",
      "Среднее арифметическое:\n",
      "7.75\n"
     ]
    },
    {
     "data": {
      "text/plain": [
       "array([[ 5,  7],\n",
       "       [ 9, 10]])"
      ]
     },
     "execution_count": 2,
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    }
   ],
   "source": [
    "import numpy as np\n",
    "matrix = np.array([[5, 7], [9, 10]])\n",
    "\n",
    "print(\"Моя матрица 2x2:\")\n",
    "print(matrix)\n",
    "\n",
    "print(\"\\nТестирую linspace:\")\n",
    "arr = np.linspace(0, 10, 5)\n",
    "print(\"Массив от 0 до 10 с 5 элементами:\")\n",
    "print(arr)\n",
    "\n",
    "print(\"\\nСлучайные числа из randn:\")\n",
    "random_arr = np.random.randn(3)\n",
    "print(random_arr)\n",
    "\n",
    "print(\"\\nУмножаю матрицу на саму себя через dot:\")\n",
    "result = np.dot(matrix, matrix)\n",
    "print(\"Результат:\")\n",
    "print(result)\n",
    "\n",
    "print(\"\\nСумма всех элементов матрицы:\")\n",
    "summa = np.sum(matrix)\n",
    "print(summa)\n",
    "\n",
    "print(\"Среднее арифметическое:\")\n",
    "srednee = np.mean(matrix)\n",
    "print(srednee)\n",
    "\n",
    "matrix"
   ]
  },
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   "source": []
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