B03S. Functions Solutions.ipynb

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    "# B03S. Functions Solutions"
   ]
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   "source": [
    "## Introduction to Exercises"
   ]
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   "source": [
    "Welcome to the first set of exercises! Whilst doing these we reccomend that you:\n",
    "\n",
    "1) Refer to the lesson notebooks and your notes in order to answer them but <b>don't</b> copy and paste over from them! You'll learn better if you start committing the code to muscle memory through typing!<br/>\n",
    "2) Go beyond the scope of the exercises wherever you can - feel free to try stuff and experiment. It's unlikely that you'll break anything.<br/>\n",
    "3) Google anything that you want to know more about.<br/>\n",
    "4) Copy code over to your Cookbook for future reference.<br/>\n",
    "5) Have fun =)<br/>"
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   "source": [
    "#### Exercise 1: Create a function that prints the type and value of an object / variable and use it to evaluate variables a through e below."
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    "a = 'beans'\n",
    "b = 12\n",
    "c = 34.65\n",
    "d = True\n",
    "e = None\n",
    "f=3"
   ]
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    "def obj(var):\n",
    "    '''Prints the type and value of an object'''\n",
    "    print(\"The type of the variable is:\",type(var))\n",
    "    print(\"The value of the object is:\",var)\n",
    "    \n",
    "obj(a)\n",
    "obj(b)\n",
    "obj(c)\n",
    "obj(d)\n",
    "obj(e)\n",
    "obj(f)"
   ]
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   "source": [
    "#### Exercise 2: Create a function that determines how many letters are in a character string and outputs this in a meaningful statement to the user. Then use it to evaluate variables f through j below:"
   ]
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    "f = 'The Shawshank Redemption'\n",
    "g = 'The Godfather'\n",
    "h = 'The Godfather: Part II'\n",
    "i = 'The Dark Knight'\n",
    "j = \"Schindler's List\""
   ]
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    "def char(var):\n",
    "    '''Determines how many characters are in a string'''\n",
    "    print(\"%s contains\" % var,len(var),\"characters\")\n",
    "\n",
    "char(f)\n",
    "char(g)\n",
    "char(h)\n",
    "char(i)\n",
    "char(j)"
   ]
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    "#### Exercise 3: Create a function using if/elif/else that determines what mode of transport to take based upon the number of people who want to travel:\n",
    "        \n",
    "1-2: Walk<br/>\n",
    "3-5: Car<br/>\n",
    "6-50: Coach<br/>\n",
    "51-100: Train<br/>\n",
    "101+: Plane<br/>\n",
    "\n",
    "#### Then use this function to evaluate variables k through o:"
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    "k = 56\n",
    "l = 1\n",
    "m = 4\n",
    "n = 180\n",
    "o = 12"
   ]
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    "def people(var):\n",
    "    '''Determines the best mode of transport based upon the volume of people travelling'''\n",
    "    if var > 0 and var <= 2:\n",
    "        return 'Walk'\n",
    "    elif var > 2 and var <= 5:\n",
    "        return 'Car'\n",
    "    elif var > 5 and var <= 50:\n",
    "        return 'Coach'\n",
    "    elif var > 50 and var <= 100:\n",
    "        return 'Train'\n",
    "    elif var > 100:\n",
    "        return 'Plane' \n",
    "    else:\n",
    "        return 'Error'\n",
    "\n",
    "print(\"k =\",people(k),\"l =\",people(l),\"m =\",people(m),\"n =\",people(n),\"o =\",people(o))"
   ]
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