{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "d32905fd-8062-49a1-a284-efbfbc48d00b",
   "metadata": {},
   "source": [
    "# 3. Vorlesung"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "52207bf8-c854-4249-a011-741cc6f57283",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "1\n",
      "2\n",
      "3\n"
     ]
    }
   ],
   "source": [
    "count = 1\n",
    "while count < 4:\n",
    "    print(count)\n",
    "    count += 1 "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "cfc37791-5b75-4c51-ae76-a21f306821e0",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "1\n",
      "2\n",
      "3\n"
     ]
    }
   ],
   "source": [
    "for count in [1, 2, 3]:\n",
    "    print(count)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "daaa7cbe-0cb7-45c9-89a8-241561908db2",
   "metadata": {},
   "source": [
    "```C\n",
    "for (int i = 0; i < 4, i++) {}\n",
    "```"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "3e461857-f366-46f8-ad51-9800348b4521",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "1\n",
      "3\n"
     ]
    }
   ],
   "source": [
    "for count in range(1,4,2):\n",
    "    print(count)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "4f4d9b6c-c262-45a0-ab7a-ac8d3f13d110",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[0, 1, 2, 3, 4]"
      ]
     },
     "execution_count": 8,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l = [0, 1, 2, 3, 4]\n",
    "l"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "fbcb9b7d-2850-41fe-82a5-09ad75191329",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "0\n",
      "1\n",
      "2\n",
      "3\n",
      "4\n"
     ]
    }
   ],
   "source": [
    "for el in l:\n",
    "    print(el)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "c1cb9b0a-170c-4b45-b329-e28b0f8ee818",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "5"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "len(l)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "id": "f595c1f5-4945-4ee4-89e7-cde25d2a7e41",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "0\n",
      "1\n",
      "2\n",
      "3\n",
      "4\n"
     ]
    }
   ],
   "source": [
    "for i in range(len(l)):\n",
    "    print(i)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "id": "6902e5e5-0a49-4bce-a03a-f4c4d812ffa7",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "0\n",
      "1\n",
      "2\n",
      "3\n",
      "4\n"
     ]
    }
   ],
   "source": [
    "for i in range(len(l)):\n",
    "    print(l[i])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "id": "4e2f0c81-894d-424d-848f-3e7cc36bd70b",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Hello\n",
      "Hello\n",
      "Hello\n",
      "Hello\n",
      "Hello\n",
      "Hello\n"
     ]
    }
   ],
   "source": [
    "for _ in range(6):\n",
    "    print(\"Hello\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "e1fbf047-ed8c-4a27-9729-6b05ed55140a",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'a': 5, 'b': 8, 'c': 10}"
      ]
     },
     "execution_count": 16,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "d = {\"a\": 5, \"b\": 8, \"c\": 10}\n",
    "d"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "id": "faf3bea9-a308-4317-8a5d-ba4281a86671",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "dict_values([5, 8, 10])"
      ]
     },
     "execution_count": 17,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "d.values()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "id": "52262d79-76d2-4bf4-8f06-8ed55dcff7cc",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Wert: 5\n",
      "Wert: 8\n",
      "Wert: 10\n"
     ]
    }
   ],
   "source": [
    "for el in d.values():\n",
    "    print(f\"Wert: {el}\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "id": "280eb1d9-bfe8-4715-a54a-4b40ef542618",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Key: a\n",
      "Key: b\n",
      "Key: c\n"
     ]
    }
   ],
   "source": [
    "for key in d.keys():\n",
    "    print(f\"Key: {key}\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "id": "7a0fde62-9fa8-4089-b257-d2a2263b2b0d",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Key: a mit Wert: 5\n",
      "Key: b mit Wert: 8\n",
      "Key: c mit Wert: 10\n"
     ]
    }
   ],
   "source": [
    "for k, v in d.items():\n",
    "    print(f\"Key: {k} mit Wert: {v}\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "id": "dc988e8a-135d-483f-9ae0-d20cc861c558",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[0, 1, 4, 9, 16, 25]"
      ]
     },
     "execution_count": 22,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "squared = []\n",
    "for i in range(6):\n",
    "    squared.append(i*i)\n",
    "squared"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "id": "94f148fb-a1f3-4bd9-82b0-baa3ad0b9d35",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[0, 1, 4, 9, 16, 25]"
      ]
     },
     "execution_count": 23,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "sq = [n**2 for n in range(6)]\n",
    "sq"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "id": "3e6d5db7-3cc1-4b21-9ad0-4d3402b4765b",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{0: 0, 1: 1, 2: 4, 3: 9, 4: 16, 5: 25}"
      ]
     },
     "execution_count": 25,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "di = {}\n",
    "for n in range(6):\n",
    "    di[n] = n**2\n",
    "di"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 26,
   "id": "6bd693d3-8e27-48c2-9fe4-8ecafb98b181",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{0: 0, 1: 1, 2: 4, 3: 9, 4: 16, 5: 25}"
      ]
     },
     "execution_count": 26,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "dic = {n: n**2 for n in range(6)}\n",
    "dic"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 27,
   "id": "af2dfb75-e7b5-40c9-804f-d1c8fca9d6e0",
   "metadata": {},
   "outputs": [
    {
     "name": "stdin",
     "output_type": "stream",
     "text": [
      " 4\n"
     ]
    },
    {
     "data": {
      "text/plain": [
       "'4'"
      ]
     },
     "execution_count": 27,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "input()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "id": "43939109-c7e5-4583-8a8d-bc12c03163e6",
   "metadata": {},
   "outputs": [
    {
     "name": "stdin",
     "output_type": "stream",
     "text": [
      " 6\n"
     ]
    }
   ],
   "source": [
    "text = input()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "id": "d023c299-89a4-4c13-8c6e-aae4feae9004",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'6'"
      ]
     },
     "execution_count": 29,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "text"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 30,
   "id": "c6e009bc-954d-4bc6-81eb-98efbc82024a",
   "metadata": {},
   "outputs": [
    {
     "name": "stdin",
     "output_type": "stream",
     "text": [
      "Gebe bitte eine Zahl ein: 7\n"
     ]
    },
    {
     "data": {
      "text/plain": [
       "'7'"
      ]
     },
     "execution_count": 30,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "input(\"Gebe bitte eine Zahl ein:\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 34,
   "id": "d47d956b-f131-4c4c-acad-4adc5ff1508e",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<_io.TextIOWrapper name='test.txt' mode='r' encoding='UTF-8'>"
      ]
     },
     "execution_count": 34,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "f = open('test.txt')\n",
    "f"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 35,
   "id": "4d38875a-18f9-4ad6-991b-fc61ea1dd08a",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['Super Secret Message\\n', 'Hallo Welt\\n', 'Geiler Kurs\\n', 'Freitag 15h yeah']"
      ]
     },
     "execution_count": 35,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "f.readlines()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 39,
   "id": "1c0610b1-b6c2-430f-94c0-e50def936b16",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<_io.TextIOWrapper name='data.txt' mode='w' encoding='UTF-8'>"
      ]
     },
     "execution_count": 39,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "data = open('data.txt', 'w')\n",
    "data"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 40,
   "id": "1b74ffb0-487a-4ec7-9ed1-3e51b5c76450",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "18"
      ]
     },
     "execution_count": 40,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "data.write(\"Ich will nachhause\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 41,
   "id": "f831efc1-b548-4a49-bbed-62c8018ecdfe",
   "metadata": {},
   "outputs": [],
   "source": [
    "f.close()\n",
    "data.close()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 42,
   "id": "4580acb8-cc79-440c-a463-140547883ded",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['Super Secret Message\\n', 'Hallo Welt\\n', 'Geiler Kurs\\n', 'Freitag 15h yeah']\n"
     ]
    }
   ],
   "source": [
    "f = open('test.txt')\n",
    "print(f.readlines())\n",
    "f.close()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 44,
   "id": "50f35e0c-5138-478c-abe9-dae163c467a4",
   "metadata": {},
   "outputs": [
    {
     "ename": "ValueError",
     "evalue": "I/O operation on closed file.",
     "output_type": "error",
     "traceback": [
      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[0;31mValueError\u001b[0m                                Traceback (most recent call last)",
      "Cell \u001b[0;32mIn[44], line 1\u001b[0m\n\u001b[0;32m----> 1\u001b[0m \u001b[43mf\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mreadlines\u001b[49m\u001b[43m(\u001b[49m\u001b[43m)\u001b[49m\n",
      "\u001b[0;31mValueError\u001b[0m: I/O operation on closed file."
     ]
    }
   ],
   "source": [
    "f.readlines()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 45,
   "id": "999e5179-4d96-4b8b-bec6-3f8b0a857291",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['Super Secret Message\\n', 'Hallo Welt\\n', 'Geiler Kurs\\n', 'Freitag 15h yeah']\n"
     ]
    },
    {
     "ename": "ValueError",
     "evalue": "I/O operation on closed file.",
     "output_type": "error",
     "traceback": [
      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[0;31mValueError\u001b[0m                                Traceback (most recent call last)",
      "Cell \u001b[0;32mIn[45], line 3\u001b[0m\n\u001b[1;32m      1\u001b[0m \u001b[38;5;28;01mwith\u001b[39;00m \u001b[38;5;28mopen\u001b[39m(\u001b[38;5;124m'\u001b[39m\u001b[38;5;124mtest.txt\u001b[39m\u001b[38;5;124m'\u001b[39m, \u001b[38;5;124m'\u001b[39m\u001b[38;5;124mr\u001b[39m\u001b[38;5;124m'\u001b[39m) \u001b[38;5;28;01mas\u001b[39;00m f:\n\u001b[1;32m      2\u001b[0m     \u001b[38;5;28mprint\u001b[39m(f\u001b[38;5;241m.\u001b[39mreadlines())\n\u001b[0;32m----> 3\u001b[0m \u001b[43mf\u001b[49m\u001b[38;5;241;43m.\u001b[39;49m\u001b[43mreadlines\u001b[49m\u001b[43m(\u001b[49m\u001b[43m)\u001b[49m\n",
      "\u001b[0;31mValueError\u001b[0m: I/O operation on closed file."
     ]
    }
   ],
   "source": [
    "with open('test.txt', 'r') as f:\n",
    "    print(f.readlines())\n",
    "f.readlines()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 46,
   "id": "f92c73ed-c02b-4142-ac27-25f22caaa199",
   "metadata": {},
   "outputs": [],
   "source": [
    "import math"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 47,
   "id": "a911de4f-f9c9-4098-8369-d4f97efab684",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<module 'math' from '/usr/local/Cellar/python@3.12/3.12.5/Frameworks/Python.framework/Versions/3.12/lib/python3.12/lib-dynload/math.cpython-312-darwin.so'>"
      ]
     },
     "execution_count": 47,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "math"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 48,
   "id": "7513811c-18e9-4cab-9edf-8f383be21027",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "3.141592653589793"
      ]
     },
     "execution_count": 48,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "math.pi"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 49,
   "id": "254a6fab-a259-4379-a3e3-8f11560b87d7",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "3.1622776601683795"
      ]
     },
     "execution_count": 49,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "math.sqrt(10)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 50,
   "id": "15c63d11-6da3-4c44-a579-16a2f6cbe499",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "2.0"
      ]
     },
     "execution_count": 50,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "math.sqrt(4)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 51,
   "id": "c4c97328-95dd-4e6b-bc9c-857ee5d04e25",
   "metadata": {},
   "outputs": [],
   "source": [
    "from math import sqrt"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 52,
   "id": "5d5a0a0d-bb66-49ad-bcee-2656afc7af47",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "9.486832980505138"
      ]
     },
     "execution_count": 52,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "sqrt(90)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "b83a73fe-8f6e-4b22-97bc-c9016206a6bd",
   "metadata": {},
   "outputs": [],
   "source": [
    "from math import *"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 53,
   "id": "d1568734-9077-4444-9c0e-5dbf385dc46a",
   "metadata": {},
   "outputs": [],
   "source": [
    "import numpy as np"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 54,
   "id": "718bb6e9-1cda-438d-909a-b51064471d0a",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "np.float64(94.86832980505137)"
      ]
     },
     "execution_count": 54,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "np.sqrt(9000)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
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