Lec1.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "58000e8a",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "8"
      ]
     },
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "3+5"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "703e9bec",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "12"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "3+9"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "2af3c7f6",
   "metadata": {},
   "outputs": [],
   "source": [
    "#0   1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "e912f06f",
   "metadata": {},
   "outputs": [],
   "source": [
    "a=3"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "3e45c498",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "3"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "a"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "9d80488d",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "3\n"
     ]
    }
   ],
   "source": [
    "print(a)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "533a41ec",
   "metadata": {},
   "outputs": [],
   "source": [
    "b=6"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "cdf4a514",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "6"
      ]
     },
     "execution_count": 7,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "b"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "218a1d68",
   "metadata": {},
   "outputs": [],
   "source": [
    "c=a+b"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "9dc847c7",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "9"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "c"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "9fe1f356",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "15"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "7+8"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "c82bdc02",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "20"
      ]
     },
     "execution_count": 11,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "_+5"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "id": "decfbddd",
   "metadata": {},
   "outputs": [],
   "source": [
    "h=10"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "id": "8c9feb11",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "26"
      ]
     },
     "execution_count": 13,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "_+6"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "id": "6b74bccb",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "int"
      ]
     },
     "execution_count": 14,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "type(a)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "id": "80cb96c5",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "<class 'int'>\n"
     ]
    }
   ],
   "source": [
    "print(type(a))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "37101485",
   "metadata": {},
   "outputs": [],
   "source": [
    "b=12\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "id": "6a62792e",
   "metadata": {},
   "outputs": [],
   "source": [
    "b=10"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "id": "2e599664",
   "metadata": {},
   "outputs": [],
   "source": [
    "a,b=10,12"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "id": "9a8d1cf7",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "10"
      ]
     },
     "execution_count": 19,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "a\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "id": "da19a863",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "12"
      ]
     },
     "execution_count": 20,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "b"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "id": "e8ee47f2",
   "metadata": {},
   "outputs": [],
   "source": [
    "x=12.15"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "id": "c4425d37",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "12.15"
      ]
     },
     "execution_count": 22,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "x"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "id": "17a69d2e",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "float"
      ]
     },
     "execution_count": 23,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "type(x)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "id": "9e80140e",
   "metadata": {},
   "outputs": [],
   "source": [
    "z='igdtuw'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "id": "894f6e1f",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'igdtuw'"
      ]
     },
     "execution_count": 25,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "z\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 26,
   "id": "e0bf6fa1",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "<class 'str'>\n"
     ]
    }
   ],
   "source": [
    "print(type(z))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 27,
   "id": "376beadd",
   "metadata": {},
   "outputs": [],
   "source": [
    "x=2"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "id": "27fe7f5a",
   "metadata": {},
   "outputs": [],
   "source": [
    "y=3\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "id": "83143220",
   "metadata": {},
   "outputs": [],
   "source": [
    "z=x**y"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 30,
   "id": "28839c8b",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "8"
      ]
     },
     "execution_count": 30,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "z"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 31,
   "id": "76c315ae",
   "metadata": {},
   "outputs": [],
   "source": [
    "s='abcdfghi'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "id": "f51ddc01",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'abcdfghi'"
      ]
     },
     "execution_count": 32,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "s"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 33,
   "id": "1a6f99ec",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "abcdfghi\n"
     ]
    }
   ],
   "source": [
    "print(s)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 34,
   "id": "79ea92b7",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'a'"
      ]
     },
     "execution_count": 34,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "s[0]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 35,
   "id": "cfe9d2b1",
   "metadata": {},
   "outputs": [
    {
     "ename": "IndexError",
     "evalue": "string index out of range",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mIndexError\u001b[0m                                Traceback (most recent call last)",
      "\u001b[1;32m~\\AppData\\Local\\Temp/ipykernel_34060/2303543060.py\u001b[0m in \u001b[0;36m<module>\u001b[1;34m\u001b[0m\n\u001b[1;32m----> 1\u001b[1;33m \u001b[0ms\u001b[0m\u001b[1;33m[\u001b[0m\u001b[1;36m9\u001b[0m\u001b[1;33m]\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m",
      "\u001b[1;31mIndexError\u001b[0m: string index out of range"
     ]
    }
   ],
   "source": [
    "s[9]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 36,
   "id": "bd2354cd",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "8"
      ]
     },
     "execution_count": 36,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "len(s)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 37,
   "id": "ceaa4c0f",
   "metadata": {},
   "outputs": [
    {
     "ename": "IndexError",
     "evalue": "string index out of range",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mIndexError\u001b[0m                                Traceback (most recent call last)",
      "\u001b[1;32m~\\AppData\\Local\\Temp/ipykernel_34060/495611267.py\u001b[0m in \u001b[0;36m<module>\u001b[1;34m\u001b[0m\n\u001b[1;32m----> 1\u001b[1;33m \u001b[0ms\u001b[0m\u001b[1;33m[\u001b[0m\u001b[1;36m8\u001b[0m\u001b[1;33m]\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m",
      "\u001b[1;31mIndexError\u001b[0m: string index out of range"
     ]
    }
   ],
   "source": [
    "s[8]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 38,
   "id": "6e0a4dbc",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'i'"
      ]
     },
     "execution_count": 38,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "s[7]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 39,
   "id": "20296af2",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'cdf'"
      ]
     },
     "execution_count": 39,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "s[2:5]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 40,
   "id": "f87a9e11",
   "metadata": {},
   "outputs": [],
   "source": [
    "s1='1234567890'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 41,
   "id": "03c2c1fa",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'1234567890'"
      ]
     },
     "execution_count": 41,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "s1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 42,
   "id": "fedb5dde",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'3'"
      ]
     },
     "execution_count": 42,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "s1[2]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 43,
   "id": "1afca046",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'4'"
      ]
     },
     "execution_count": 43,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "s1[3]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 44,
   "id": "ff1ab4bf",
   "metadata": {},
   "outputs": [
    {
     "ename": "TypeError",
     "evalue": "can't multiply sequence by non-int of type 'str'",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mTypeError\u001b[0m                                 Traceback (most recent call last)",
      "\u001b[1;32m~\\AppData\\Local\\Temp/ipykernel_34060/3257078176.py\u001b[0m in \u001b[0;36m<module>\u001b[1;34m\u001b[0m\n\u001b[1;32m----> 1\u001b[1;33m \u001b[0mm\u001b[0m\u001b[1;33m=\u001b[0m\u001b[0ms1\u001b[0m\u001b[1;33m[\u001b[0m\u001b[1;36m2\u001b[0m\u001b[1;33m]\u001b[0m\u001b[1;33m*\u001b[0m\u001b[0ms1\u001b[0m\u001b[1;33m[\u001b[0m\u001b[1;36m3\u001b[0m\u001b[1;33m]\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m",
      "\u001b[1;31mTypeError\u001b[0m: can't multiply sequence by non-int of type 'str'"
     ]
    }
   ],
   "source": [
    "m=s1[2]*s1[3]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 45,
   "id": "6c404c89",
   "metadata": {},
   "outputs": [],
   "source": [
    "p=int(s1[2])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 46,
   "id": "f99c583d",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "3"
      ]
     },
     "execution_count": 46,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "p"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 47,
   "id": "9448892f",
   "metadata": {},
   "outputs": [],
   "source": [
    "q=int(s1[3])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 48,
   "id": "af792c35",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "4"
      ]
     },
     "execution_count": 48,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "q"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 49,
   "id": "0fa6657d",
   "metadata": {},
   "outputs": [],
   "source": [
    "r=p*q"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 50,
   "id": "6f8af44e",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "12"
      ]
     },
     "execution_count": 50,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "r"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 51,
   "id": "c4988d34",
   "metadata": {},
   "outputs": [],
   "source": [
    "# str"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "d61f2bd0",
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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