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Add initial version of chapter 04's review

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Alexander Hess 2020-10-15 19:00:14 +02:00
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04_iteration/06_review.ipynb Normal file
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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Chapter 4: Recursion & Looping (Review Questions)"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"The questions below assume that you have read the [first <img height=\"12\" style=\"display: inline-block\" src=\"../static/link/to_nb.png\">](https://nbviewer.jupyter.org/github/webartifex/intro-to-python/blob/develop/04_iteration/00_content.ipynb), [second <img height=\"12\" style=\"display: inline-block\" src=\"../static/link/to_nb.png\">](https://nbviewer.jupyter.org/github/webartifex/intro-to-python/blob/develop/04_iteration/02_content.ipynb), and the [third <img height=\"12\" style=\"display: inline-block\" src=\"../static/link/to_nb.png\">](https://nbviewer.jupyter.org/github/webartifex/intro-to-python/blob/develop/04_iteration/03_content.ipynb) part of Chapter 4.\n",
"\n",
"Be concise in your answers! Most questions can be answered in *one* sentence."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Essay Questions "
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q1**: Solving a problem by **recursion** is not only popular in computer science and math. Name some examples from the fields of business or economics where problems are also solved in a **backward** fashion!"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q2**: Explain what **duck typing** means! Why can it cause problems? Why is it [not a bug but a feature](https://www.urbandictionary.com/define.php?term=It%27s%20not%20a%20bug%2C%20it%27s%20a%20feature)?"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q3**: What is **syntactic sugar**?"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q4**: Describe in your own words why the **recursive** version of `fibonacci()`, the \"Easy at first Glance\" example in the chapter, is computationally **inefficient**! Why does the **iterative** version of `fibonacci()`, the \"Hard at first Glance\" example, run so much faster?"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q5**: What is the conceptual difference between a **container** and a **list**?"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q6**: What is a good use case for the `for`-loop's optional `else`-clause?"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## True / False Questions"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Motivate your answer with *one short* sentence!"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q7**: When a **recursion** does **not** reach the base case, this is an example of the **early exit** strategy."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q8**: Any programming language **without** looping constructs like the `for` or `while` statements is **not** Turing complete."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q9**: A **recursive** formulation is the same as a **circular** one: The terms are **synonyms**."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q10**: Formulating a computational problem as a **recursion** results in an **efficient** implementation."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q11**: Whereas a **recursion** may accidentally result in a **never-ending** program, `while`-loops and `for`-loops are guaranteed to **terminate**."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q12**: Before writing **any** kind of **loop**, we **always** need to think about a **stopping criterion** ahead of time."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q13**: **Container** types such as `list` objects are characterized by their **support** for **being looped over**, for example as in:"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"```python\n",
"for element in container:\n",
" # do something for every element\n",
" ...\n",
"```"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.8.6"
},
"toc": {
"base_numbering": 1,
"nav_menu": {},
"number_sections": false,
"sideBar": true,
"skip_h1_title": true,
"title_cell": "Table of Contents",
"title_sidebar": "Contents",
"toc_cell": false,
"toc_position": {},
"toc_section_display": false,
"toc_window_display": false
}
},
"nbformat": 4,
"nbformat_minor": 4
}

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README.md
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@ -111,6 +111,7 @@ Alternatively, the content can be viewed in a web browser
[<img height="12" style="display: inline-block" src="static/link/to_mb.png">](https://mybinder.org/v2/gh/webartifex/intro-to-python/develop?urlpath=lab/tree/04_iteration/04_exercises.ipynb)
(Throwing Dice)
- [summary <img height="12" style="display: inline-block" src="static/link/to_nb.png">](https://nbviewer.jupyter.org/github/webartifex/intro-to-python/blob/develop/04_iteration/05_summary.ipynb)
- [review questions <img height="12" style="display: inline-block" src="static/link/to_nb.png">](https://nbviewer.jupyter.org/github/webartifex/intro-to-python/blob/develop/04_iteration/06_review.ipynb)
#### Videos