Python Notes2_math module,random module,round function.ipynb

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      "3.141592653589793\n"
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   "source": [
    "#Math module: All mathematical functions are saved in math module\n",
    "\n",
    "\"\"\"\n",
    "+ Addition\n",
    "- Subtraction\n",
    "* Multiplication\n",
    "\\ Division\n",
    "** Exponential\n",
    "// Integer\n",
    "% Remainder or modulo\n",
    "\n",
    "follows BEDMAS rule\n",
    "\n",
    "\"\"\"\n",
    "from math import pi\n",
    "print(pi)"
   ]
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    {
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     "text": [
      "1\n"
     ]
    }
   ],
   "source": [
    "#random module: it is used for games\n",
    "\n",
    "from random import randint\n",
    "x=randint(1,2)\n",
    "print(x)"
   ]
  },
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   "cell_type": "code",
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     "text": [
      "3.142\n"
     ]
    }
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   "source": [
    "#How to use round function\n",
    "\n",
    "from math import pi\n",
    "print(round(pi,3))\n"
   ]
  },
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   "source": [
    "#  dir() ---->to get directory of modules\n",
    "#  import math , dir(math) ---->to get all math functions\n",
    "#  help()  ----->to get help for particular function"
   ]
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       "['__doc__',\n",
       " '__loader__',\n",
       " '__name__',\n",
       " '__package__',\n",
       " '__spec__',\n",
       " 'acos',\n",
       " 'acosh',\n",
       " 'asin',\n",
       " 'asinh',\n",
       " 'atan',\n",
       " 'atan2',\n",
       " 'atanh',\n",
       " 'ceil',\n",
       " 'copysign',\n",
       " 'cos',\n",
       " 'cosh',\n",
       " 'degrees',\n",
       " 'e',\n",
       " 'erf',\n",
       " 'erfc',\n",
       " 'exp',\n",
       " 'expm1',\n",
       " 'fabs',\n",
       " 'factorial',\n",
       " 'floor',\n",
       " 'fmod',\n",
       " 'frexp',\n",
       " 'fsum',\n",
       " 'gamma',\n",
       " 'gcd',\n",
       " 'hypot',\n",
       " 'inf',\n",
       " 'isclose',\n",
       " 'isfinite',\n",
       " 'isinf',\n",
       " 'isnan',\n",
       " 'ldexp',\n",
       " 'lgamma',\n",
       " 'log',\n",
       " 'log10',\n",
       " 'log1p',\n",
       " 'log2',\n",
       " 'modf',\n",
       " 'nan',\n",
       " 'pi',\n",
       " 'pow',\n",
       " 'radians',\n",
       " 'remainder',\n",
       " 'sin',\n",
       " 'sinh',\n",
       " 'sqrt',\n",
       " 'tan',\n",
       " 'tanh',\n",
       " 'tau',\n",
       " 'trunc']"
      ]
     },
     "execution_count": 6,
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   ],
   "source": [
    "import math\n",
    "dir(math)\n"
   ]
  },
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     "text": [
      "Help on built-in function exp in math:\n",
      "\n",
      "math.exp = exp(x, /)\n",
      "    Return e raised to the power of x.\n",
      "\n"
     ]
    }
   ],
   "source": [
    "help('math.exp')"
   ]
  },
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      "\n",
      "Welcome to Python 3.7's help utility!\n",
      "\n",
      "If this is your first time using Python, you should definitely check out\n",
      "the tutorial on the Internet at https://docs.python.org/3.7/tutorial/.\n",
      "\n",
      "Enter the name of any module, keyword, or topic to get help on writing\n",
      "Python programs and using Python modules.  To quit this help utility and\n",
      "return to the interpreter, just type \"quit\".\n",
      "\n",
      "To get a list of available modules, keywords, symbols, or topics, type\n",
      "\"modules\", \"keywords\", \"symbols\", or \"topics\".  Each module also comes\n",
      "with a one-line summary of what it does; to list the modules whose name\n",
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      "\n"
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    "help()"
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