python-intro/exercises/ex05_libraries.ipynb

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    "# Exercise 5: Libraries"
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    "## Aim: Learn what libraries are and how to use them."
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    "### Issues covered:\n",
    "- Using the `math` library to help with arithmetic\n",
    "- Using `help` to learn about libraries\n",
    "- How to `import` from libraries"
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   "source": [
    "## 1. Let's learn about the `math` library"
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    "Import `pi` from the `math` library and print its value."
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    "Try printing the value of $sin(1/2\\pi)$."
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    "You can use `help()` to learn about libraries just like with functions - try getting help with `math`."
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    "Import only the relevant functions from the `math` library to calculate $sin(1/2\\pi)$ and print out its value again."
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    "Import the math module as `m` to create an alias then print the value of $sin(1/2\\pi)$ again."
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   "source": [
    "## 2. Extension: Challenge Questions"
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    "1. Use a function from the `math` module to find the cube root of 1124864."
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    "_Hint: Use `help()` to find descriptions of the functions that `math` has to offer._"
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    "2. Try running the block of code below. Can you work out why there is an error and find a way to fix it?\n",
    "```\n",
    "import math\n",
    "print(sqrt(64))\n",
    "```"
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    "3. Another useful library to know about is `random`. You can use `random.randint(lower, upper)` to generate a random number between the lower and upper values. Try using it to generate a random number between 1 and 10."
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    "4. Use `help` to take a look at what else you can do with `random`."
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    "5. Play around with some of the `random` functions. Remember to import the function you want to use."
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