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   "source": [
    "# Chapter 2: Functions & Modularization"
   ]
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   "source": [
    "## Content Review"
   ]
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   "source": [
    "Read [Chapter 2](https://nbviewer.jupyter.org/github/webartifex/intro-to-python/blob/master/02_functions_00_lecture.ipynb) of the book. Then, work through the questions below."
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   "source": [
    "### Essay Questions "
   ]
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    "Answer the following questions *briefly*!"
   ]
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   "source": [
    "**Q1**: What behavior of the `def` statement makes it a **statement**? Is there a way to use an **expression** to create a function?"
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    " "
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    "**Q2**: One of the first confusions of experienced programmers coming from other languages to Python regards the observation that **\"everything in Python is an object\"** (cf., this [discussion](https://www.reddit.com/r/learnpython/comments/8rypx9/everything_in_python_is_an_object/)). How does this relate to **functions**?"
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    " "
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   "source": [
    "**Q3**: What does it mean for a variable to go out of **scope**?"
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   "source": [
    " "
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   "source": [
    "**Q4**: How can a **global** variable be **shadowed**? Is this good or bad?"
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    " "
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   "source": [
    "**Q5**: Explain the concept of **forwarding** a **function call**."
   ]
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   "source": [
    " "
   ]
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   "source": [
    "**Q6**: What are **keyword-only arguments** and when is it appropriate to use them?"
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    " "
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   "source": [
    "**Q7**: What are **callables**? How do they relate to `function` objects?"
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    " "
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   "source": [
    "### True / False Questions"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Motivate your answer with *one short* sentence!"
   ]
  },
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   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "**Q8**: A mere function **call** is just an **expression**."
   ]
  },
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   "metadata": {},
   "source": [
    " "
   ]
  },
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   "source": [
    "**Q9**: When using the `import` statement, we need to ensure that the imported attributes do *not* overwrite any already defined variables and functions."
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   "metadata": {},
   "source": [
    " "
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   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "**Q10:** Functions always have a name by which we can call them."
   ]
  },
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   "metadata": {},
   "source": [
    " "
   ]
  },
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   "source": [
    "**Q11**: The [standard library](https://docs.python.org/3/library/index.html) is a collection of numerical tools often used in scientific computing, for example, advanced mathematical functions or utilities for simulation."
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