Functions.ipynb

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   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Outside the function\n"
     ]
    }
   ],
   "source": [
    "# a collection of instructions or code\n",
    "def func():\n",
    "    print(\"hello\")\n",
    "    print(\"world\")\n",
    "print(\"Outside the function\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "hello\n",
      "world\n"
     ]
    }
   ],
   "source": [
    "func() #calling the function to execute the code"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "hello\n",
      "world\n",
      "hello\n",
      "world\n"
     ]
    }
   ],
   "source": [
    "func()\n",
    "func()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [],
   "source": [
    "# a mapping with 1 variable\n",
    "def func2(x):\n",
    "    return 2*x"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [],
   "source": [
    "a=func2(3)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "6\n"
     ]
    }
   ],
   "source": [
    "print(a)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [],
   "source": [
    "b=func2(4)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "8\n"
     ]
    }
   ],
   "source": [
    "print(b)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "10\n"
     ]
    }
   ],
   "source": [
    "c=func2(5)\n",
    "print(c)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [],
   "source": [
    "#mapping with more than one variable\n",
    "def func3(x,y):\n",
    "    return x+y"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "5\n"
     ]
    }
   ],
   "source": [
    "e=func3(2,3)\n",
    "print(e)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "metadata": {},
   "outputs": [],
   "source": [
    "def func4(x):\n",
    "    print(x)\n",
    "    print(\"still in this function\")\n",
    "    return 3*x"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "4\n",
      "still in this function\n"
     ]
    }
   ],
   "source": [
    "f=func4(4)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "12\n"
     ]
    }
   ],
   "source": [
    "print(f)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "metadata": {},
   "outputs": [],
   "source": [
    "def func5(some_argument): #with no return\n",
    "    print(some_argument)\n",
    "    print(\"weeee\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "4\n",
      "weeee\n"
     ]
    }
   ],
   "source": [
    "func5(4)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [],
   "source": [
    "name1=\"amisha\"\n",
    "height_m1=1.5\n",
    "weight_kg1=55\n",
    "\n",
    "name2=\"fardeen\"\n",
    "height_m2=1.6\n",
    "weight_kg2=70\n",
    "\n",
    "name3=\"darshita\"\n",
    "height_m3=1.7\n",
    "weight_kg3=50"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [],
   "source": [
    "def bmi_calc(name,weight_kg,height_m):\n",
    "    bmi=weight_kg/(height_m**2)\n",
    "    print(\"bmi:\", bmi)\n",
    "    if bmi < 25:\n",
    "        return name + \" is not overweight\"\n",
    "    else:\n",
    "        return name+ \" is overweight\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "bmi: 24.444444444444443\n",
      "bmi: 27.343749999999996\n",
      "bmi: 17.301038062283737\n"
     ]
    }
   ],
   "source": [
    "result1=bmi_calc(name1,weight_kg1,height_m1)\n",
    "result2=bmi_calc(name2,weight_kg2,height_m2)\n",
    "result3=bmi_calc(name3,weight_kg3,height_m3)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "amisha is not overweight\n",
      "fardeen is overweight\n",
      "darshita is not overweight\n"
     ]
    }
   ],
   "source": [
    "print(result1)\n",
    "print(result2)\n",
    "print(result3)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "metadata": {},
   "outputs": [],
   "source": [
    "def convert(miles):\n",
    "    return 1.6*miles"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "3.2\n"
     ]
    }
   ],
   "source": [
    "km=convert(2)\n",
    "print(km)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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