LABS/LAB 2. Variables and Types.ipynb

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      "100\n"
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    "# Create a variable savings\n",
    "savings = 100\n",
    "\n",
    "# Print out savings\n",
    "print(savings)"
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      "194.87171\n"
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    "# Create a variable savings\n",
    "savings = 100\n",
    "\n",
    "# Create a variable factor\n",
    "factor = 1.10\n",
    "\n",
    "# Calculate result\n",
    "result = savings*factor**7\n",
    "\n",
    "# Print out result\n",
    "print(result)"
   ]
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    "# Create a variable desc\n",
    "desc = \"compound interest\"\n",
    "\n",
    "# Create a variable profitable\n",
    "profitable = True"
   ]
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   "source": [
    "1. To find out the type of a value or a variable that refers to that value, you can use the type() function. Suppose you've defined a variable a, but you forgot the type of this variable. To determine the type of a, simply execute: type(a). We already went ahead and created three variables: a, b and c. You can use the IPython shell on the right to discover their type. Which of the following options is correct?\n",
    "    - a is of type float, b is of type str, c is of type bool"
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      "<type 'float'>\n",
      "compound interestcompound interest\n"
     ]
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   "source": [
    "# Several variables to experiment with\n",
    "savings = 100\n",
    "factor = 1.1\n",
    "desc = \"compound interest\"\n",
    "\n",
    "# Assign product of factor and savings to year1\n",
    "year1 = savings * factor\n",
    "\n",
    "# Print the type of year1\n",
    "print(type(year1))\n",
    "\n",
    "# Assign sum of desc and desc to doubledesc\n",
    "doubledesc = desc + desc\n",
    "\n",
    "# Print out doubledesc\n",
    "print(doubledesc)"
   ]
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   "outputs": [
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     "text": [
      "I started with $100 and now have $194.87171. Awesome!\n"
     ]
    }
   ],
   "source": [
    "# Definition of savings and result\n",
    "savings = 100\n",
    "result = 100 * 1.10 ** 7\n",
    "\n",
    "# Fix the printout\n",
    "print(\"I started with $\" + str(savings) + \" and now have $\" + str(result) + \". Awesome!\")\n",
    "\n",
    "# Definition of pi_string\n",
    "pi_string = \"3.1415926\"\n",
    "\n",
    "# Convert pi_string into float: pi_float\n",
    "pi_float = float(pi_string)"
   ]
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   "source": [
    "1. Now that you know something more about combining different sources of information, have a look at the 4 Python expressions below. Which one of these will throw an error? You can always copy and paste this code in the IPython Shell to find out!\n",
    "    - \"The correct answer to this multiple choice exercise is answer number \" + 2"
   ]
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