numpy.ipynb

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      "execution_count": null,
      "metadata": {
        "id": "WSM8c5wJ5fBe"
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      "source": [
        " import numpy as np\n",
        " "
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "arr=np.array([1,2,3])\n",
        "arr"
      ],
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        },
        "id": "s27XjiMn_nEL",
        "outputId": "f145093d-dc37-4eef-9299-3104865fa88c"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([1, 2, 3])"
            ]
          },
          "metadata": {},
          "execution_count": 3
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "list_of_lists=[[1,2,3],[4,5,6],[7,8,9]]\n",
        "np.array(list_of_lists)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
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        "id": "ee-Swf8z_9JD",
        "outputId": "e515e27d-6d63-4868-d750-2b39d6daece3"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([[1, 2, 3],\n",
              "       [4, 5, 6],\n",
              "       [7, 8, 9]])"
            ]
          },
          "metadata": {},
          "execution_count": 4
        }
      ]
    },
    {
      "cell_type": "markdown",
      "source": [
        "index slicing list square brcket is used other parenthesis can be used"
      ],
      "metadata": {
        "id": "hCQFsU16CO2L"
      }
    },
    {
      "cell_type": "code",
      "source": [
        "np.arange(1,10)"
      ],
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        "id": "Uvvsz6XuCVLD",
        "outputId": "6697be82-cb45-41ec-ee3c-26cf7d221aa2"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([1, 2, 3, 4, 5, 6, 7, 8, 9])"
            ]
          },
          "metadata": {},
          "execution_count": 6
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "np.arange(1,100)"
      ],
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        "id": "5h_WirPtDGct",
        "outputId": "79fa3aa5-aac6-4d1a-c65e-61c477615196"
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            "text/plain": [
              "array([ 1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 17,\n",
              "       18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,\n",
              "       35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,\n",
              "       52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68,\n",
              "       69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85,\n",
              "       86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99])"
            ]
          },
          "metadata": {},
          "execution_count": 7
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "np.arange(10)"
      ],
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        {
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          "data": {
            "text/plain": [
              "array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])"
            ]
          },
          "metadata": {},
          "execution_count": 8
        }
      ]
    },
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      "source": [
        "np.arange(1,46,5)"
      ],
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        {
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          "data": {
            "text/plain": [
              "array([ 1,  6, 11, 16, 21, 26, 31, 36, 41])"
            ]
          },
          "metadata": {},
          "execution_count": 9
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "np.zeros(10)"
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        {
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            "text/plain": [
              "array([0., 0., 0., 0., 0., 0., 0., 0., 0., 0.])"
            ]
          },
          "metadata": {},
          "execution_count": 10
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "np.zeros(10,int)"
      ],
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        "id": "jVg-lXkYG1bt",
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            "text/plain": [
              "array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0])"
            ]
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          "metadata": {},
          "execution_count": 11
        }
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      "cell_type": "code",
      "source": [
        "np.zeros(10,dtype=int)"
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        {
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            "text/plain": [
              "array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0])"
            ]
          },
          "metadata": {},
          "execution_count": 12
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "np.ones(100)"
      ],
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        {
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          "data": {
            "text/plain": [
              "array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.,\n",
              "       1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.,\n",
              "       1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.,\n",
              "       1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.,\n",
              "       1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.,\n",
              "       1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.])"
            ]
          },
          "metadata": {},
          "execution_count": 13
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "np.ones(100,int)"
      ],
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      },
      "execution_count": null,
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        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,\n",
              "       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,\n",
              "       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,\n",
              "       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,\n",
              "       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1])"
            ]
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          "execution_count": 14
        }
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        "np.ones((2,5,),int)"
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        {
          "output_type": "execute_result",
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            "text/plain": [
              "array([[1, 1, 1, 1, 1],\n",
              "       [1, 1, 1, 1, 1]])"
            ]
          },
          "metadata": {},
          "execution_count": 16
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "np.zeros((2,10),int)"
      ],
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              "array([[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],\n",
              "       [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]])"
            ]
          },
          "metadata": {},
          "execution_count": 17
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "np.linspace(0,20,8)"
      ],
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        "id": "MEWveTb1H1ws",
        "outputId": "102ac324-2139-44b6-b209-eb2d0c034434"
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      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([ 0.        ,  2.85714286,  5.71428571,  8.57142857, 11.42857143,\n",
              "       14.28571429, 17.14285714, 20.        ])"
            ]
          },
          "metadata": {},
          "execution_count": 21
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "np.eye(5)"
      ],
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        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "xiYjL7ciIE0J",
        "outputId": "6881179d-a84b-4e37-ad74-86665bc7065c"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([[1., 0., 0., 0., 0.],\n",
              "       [0., 1., 0., 0., 0.],\n",
              "       [0., 0., 1., 0., 0.],\n",
              "       [0., 0., 0., 1., 0.],\n",
              "       [0., 0., 0., 0., 1.]])"
            ]
          },
          "metadata": {},
          "execution_count": 20
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "np.linspace(0,1,8)"
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        "colab": {
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        },
        "id": "5wTCUk-ZIE7t",
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      },
      "execution_count": null,
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        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([0.        , 0.14285714, 0.28571429, 0.42857143, 0.57142857,\n",
              "       0.71428571, 0.85714286, 1.        ])"
            ]
          },
          "metadata": {},
          "execution_count": 22
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "np.random.rand(3,2)"
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        "id": "ipKMbx1EIir6",
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          "base_uri": "https://localhost:8080/"
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        {
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            "text/plain": [
              "array([[0.48473256, 0.33731021],\n",
              "       [0.95131606, 0.42096372],\n",
              "       [0.97325016, 0.28171529]])"
            ]
          },
          "metadata": {},
          "execution_count": 5
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "np.random.randn(3,2)"
      ],
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          "base_uri": "https://localhost:8080/"
        },
        "id": "da9V6tdS5KQp",
        "outputId": "656fd138-1a05-4df7-d682-bc1d12fe2e68"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([[ 1.96528714,  0.30458354],\n",
              "       [-1.14575931,  1.85506722],\n",
              "       [-0.57969242,  0.52022263]])"
            ]
          },
          "metadata": {},
          "execution_count": 6
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "np.random.randint(3,10)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "_Dni5Sjf5gVT",
        "outputId": "050fa301-393e-410f-8bd0-fd4b9ed58dfa"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "3"
            ]
          },
          "metadata": {},
          "execution_count": 9
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "np.random.randint(20,56,100)"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "WIMp6eDi5pqc",
        "outputId": "711d08b0-e75a-483c-f329-df34256a9073"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([48, 49, 20, 41, 40, 22, 45, 39, 29, 41, 46, 28, 28, 40, 36, 36, 29,\n",
              "       45, 52, 54, 27, 53, 46, 51, 42, 37, 31, 29, 24, 38, 41, 39, 32, 50,\n",
              "       22, 35, 40, 42, 55, 26, 33, 35, 50, 25, 22, 50, 24, 35, 29, 53, 35,\n",
              "       34, 38, 25, 32, 32, 50, 47, 37, 37, 31, 31, 53, 50, 26, 27, 44, 33,\n",
              "       35, 41, 55, 32, 49, 32, 48, 29, 38, 45, 54, 37, 52, 42, 22, 21, 38,\n",
              "       51, 46, 36, 36, 48, 27, 40, 35, 31, 21, 40, 32, 54, 31, 52])"
            ]
          },
          "metadata": {},
          "execution_count": 10
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "rand_array=np.random.randint(0,100,20)\n",
        "rand_array"
      ],
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        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "xhrnDh-O6n63",
        "outputId": "6597c9ec-76b5-40e2-aa5b-eea557cfc4a4"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([76, 25, 95, 20, 78, 76, 40, 11, 64, 19, 98,  2, 37, 65, 12, 90, 70,\n",
              "        7,  1, 71])"
            ]
          },
          "metadata": {},
          "execution_count": 12
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "sample_array=np.arange(30)\n",
        "sample_array"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "KDLBfKji58Xb",
        "outputId": "6403d94c-85ef-4457-8d5e-54a898df4784"
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      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([ 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16,\n",
              "       17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29])"
            ]
          },
          "metadata": {},
          "execution_count": 11
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "sample_array.reshape(5,6\n",
        "                     )"
      ],
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        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "Q0AaGWZ56ugX",
        "outputId": "42f98969-7916-4908-ef45-ebad91b91e45"
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        {
          "output_type": "execute_result",
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            "text/plain": [
              "array([[ 0,  1,  2,  3,  4,  5],\n",
              "       [ 6,  7,  8,  9, 10, 11],\n",
              "       [12, 13, 14, 15, 16, 17],\n",
              "       [18, 19, 20, 21, 22, 23],\n",
              "       [24, 25, 26, 27, 28, 29]])"
            ]
          },
          "metadata": {},
          "execution_count": 14
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "rand_array.min()"
      ],
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          "base_uri": "https://localhost:8080/"
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        "id": "8kTES9r37LZU",
        "outputId": "a1106719-d114-4c1e-d2a3-26fcbacbf75b"
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      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "1"
            ]
          },
          "metadata": {},
          "execution_count": 15
        }
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      "cell_type": "code",
      "source": [
        "rand_array.argmin()"
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              "18"
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          "execution_count": 16
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      "source": [
        "rand_array.max()"
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        "id": "tVV2816x-QAp",
        "outputId": "b6c07df3-786b-48ac-afc3-86ed7c573709"
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      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "98"
            ]
          },
          "metadata": {},
          "execution_count": 17
        }
      ]
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      "cell_type": "code",
      "source": [
        "rand_array.argmax()"
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        "id": "Z1yEDbunARhl",
        "outputId": "59266fc6-4985-4abc-9cd9-ff0c84a7a6b1"
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      "outputs": [
        {
          "output_type": "execute_result",
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            "text/plain": [
              "10"
            ]
          },
          "metadata": {},
          "execution_count": 18
        }
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    },
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      "source": [
        "sample_array.dtype"
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        },
        "id": "qEmQlFLcAWbK",
        "outputId": "60d8e1c0-1860-468e-cf4c-030be2c8e28b"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "dtype('int64')"
            ]
          },
          "metadata": {},
          "execution_count": 19
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "a=np.eye(5)\n",
        "a"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "l1x5bTRtAbEB",
        "outputId": "bcc8d471-5882-4cd8-a07c-dd5d0e5fdb3c"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([[1., 0., 0., 0., 0.],\n",
              "       [0., 1., 0., 0., 0.],\n",
              "       [0., 0., 1., 0., 0.],\n",
              "       [0., 0., 0., 1., 0.],\n",
              "       [0., 0., 0., 0., 1.]])"
            ]
          },
          "metadata": {},
          "execution_count": 20
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "a.T\n"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "9jjc_U11Akk3",
        "outputId": "f0612078-88b4-4757-e542-9a57ac4d0402"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([[1., 0., 0., 0., 0.],\n",
              "       [0., 1., 0., 0., 0.],\n",
              "       [0., 0., 1., 0., 0.],\n",
              "       [0., 0., 0., 1., 0.],\n",
              "       [0., 0., 0., 0., 1.]])"
            ]
          },
          "metadata": {},
          "execution_count": 21
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "a=np.random.rand(2,3)\n",
        "a"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "Fkr9pokrCDOj",
        "outputId": "0182fc7b-62b1-4d12-ca56-8d3f8674df5b"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([[0.76502738, 0.90015166, 0.88929003],\n",
              "       [0.80529005, 0.4614021 , 0.50072713]])"
            ]
          },
          "metadata": {},
          "execution_count": 22
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "sample_array=np.arange(10,21)\n",
        "sample_array"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "JGACDlEGCaGR",
        "outputId": "9d8ad569-4d03-45e9-f19d-4c60ed94781c"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20])"
            ]
          },
          "metadata": {},
          "execution_count": 23
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "sample_array[-3]"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "fRv8RyZTCxg-",
        "outputId": "28e94e6b-5109-4b76-fee0-6fee6c6b4234"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "18"
            ]
          },
          "metadata": {},
          "execution_count": 24
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "sample_array[3:7]"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "qsCJT7MMDBVC",
        "outputId": "3df19651-9816-4626-c61f-49c6b0e2810c"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([13, 14, 15, 16])"
            ]
          },
          "metadata": {},
          "execution_count": 25
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "sample_array[1:4]=100\n",
        "sample_array"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "cIxKYJLjDH_E",
        "outputId": "1456c9f0-e656-4b71-c657-1ee1b2ef6e9e"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([ 10, 100, 100, 100,  14,  15,  16,  17,  18,  19,  20])"
            ]
          },
          "metadata": {},
          "execution_count": 26
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        " sample_array=np.arange(10,21)\n",
        " sample_array"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "La9sRnAmDOEL",
        "outputId": "f8d855d2-b953-438e-b05a-aa59e5f6aa20"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20])"
            ]
          },
          "metadata": {},
          "execution_count": 3
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "subset_sample_array = sample_array[0:7]\n",
        "subset_sample_array\n"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "A1KXCnSGw4Uh",
        "outputId": "1239aba7-f9f5-421a-baff-dbcb915a6d0f"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([10, 11, 12, 13, 14, 15, 16])"
            ]
          },
          "metadata": {},
          "execution_count": 5
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "subset_sample_array[1:4]=1001\n",
        "subset_sample_array"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "7SiJQ8cpxPVz",
        "outputId": "2e747b02-d1b9-46cc-9200-ab9435abd1ed"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([  10, 1001, 1001, 1001,   14,   15,   16])"
            ]
          },
          "metadata": {},
          "execution_count": 6
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "two d array"
      ],
      "metadata": {
        "id": "1THc4JBtxgb6"
      },
      "execution_count": null,
      "outputs": []
    },
    {
      "cell_type": "code",
      "source": [
        "subset_sample_array[:]=1001\n",
        "subset_sample_array"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "y1gKxwXixaNm",
        "outputId": "1f216f1e-2288-4ce9-e995-6b03a0311a18"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([1001, 1001, 1001, 1001, 1001, 1001, 1001])"
            ]
          },
          "metadata": {},
          "execution_count": 8
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "sample_matrix=np.array(([50,20,1,23],[24,23,21,33],[56,76,24,7]))\n",
        "sample_matrix"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "hAWSaGFI1g13",
        "outputId": "488c631d-325a-4881-d93c-ba2259ff1e73"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([[50, 20,  1, 23],\n",
              "       [24, 23, 21, 33],\n",
              "       [56, 76, 24,  7]])"
            ]
          },
          "metadata": {},
          "execution_count": 4
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "sample_matrix[1][2]"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "yFDm7ZMK15mO",
        "outputId": "c5496909-2cdf-41fd-e633-ff8fd8d59c97"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "21"
            ]
          },
          "metadata": {},
          "execution_count": 5
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "sample_matrix[2]"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "pVmssx2k2IH7",
        "outputId": "4aa72f9e-088a-418a-b9e7-f2dd44e84016"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([56, 76, 24,  7])"
            ]
          },
          "metadata": {},
          "execution_count": 13
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [
        "sample_matrix[2,:]"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "OYXrhA9n2Eiz",
        "outputId": "e7c63486-bb87-4de2-d546-05f410ac6694"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([56, 76, 24,  7])"
            ]
          },
          "metadata": {},
          "execution_count": 12
        }
      ]
    },
    {
      "cell_type": "markdown",
      "source": [
        " ' : ' = all numbers in the matrix"
      ],
      "metadata": {
        "id": "RZMW6mHomL6G"
      }
    },
    {
      "cell_type": "code",
      "source": [
        "sample_matrix[:,(3,2)]"
      ],
      "metadata": {
        "colab": {
          "base_uri": "https://localhost:8080/"
        },
        "id": "MDtP5ASN2KB2",
        "outputId": "de4e3d84-5c17-455f-8f1e-89ffcf68cc0f"
      },
      "execution_count": null,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "array([[23,  1],\n",
              "       [33, 21],\n",
              "       [ 7, 24]])"
            ]
          },
          "metadata": {},
          "execution_count": 14
        }
      ]
    },
    {
      "cell_type": "code",
      "source": [],
      "metadata": {
        "id": "bjS9h7gP2TOW"
      },
      "execution_count": null,
      "outputs": []
    }
  ]
}