is_prime() function to create a list of all primes $< 1000$. What is the sum of all primes $< 1000$?\n",
"\n",
- "Hint: is there a nice way to calculate the sum of the elements in a list?\n",
+ "Hint: you will need a for loop to fill the list.\n",
"\n"
]
},
@@ -67,8 +71,8 @@
"prime_list = ...\n",
"prime_sum = ...\n",
"\n",
- "print(prime_list)\n",
- "print(prime_sum)"
+ "print(f'List of primes: {prime_list}\\n')\n",
+ "print(f'Sum of primes: {prime_sum}')"
]
},
{
@@ -81,7 +85,7 @@
}
},
"source": [
- "\"AES\" without removing the variable that holds it. You'll need to fix 2 errors.\"EC&T\" without removing the variable that holds it. You'll need to fix 2 errors.n! = n * (n - 1) * (n - 2) * ... * 2 * 1. The function uses the fact that if n > 0, n! = n * (n - 1)!. This is an example of a _recursive_ function, a function that calls itself.\n",
"\n",
- "The code below calls the function \"factorial\" with the number 4 as input. The factorial of 4 is 4 * 3 * 2 * 1, which is 24, but the code below prints 262144. Find and fix the semantic error in this function."
+ "The code below calls the function factorial with the number 4 as input. The factorial of 4 is $4 \\cdot 3 \\cdot 2 \\cdot 1 = 24$, but the code below prints 262144. Find and fix the error in this function. What kind of error is this (syntax, runtime, semantic)?"
]
},
{
"cell_type": "code",
- "execution_count": 5,
+ "execution_count": null,
"metadata": {},
- "outputs": [
- {
- "data": {
- "text/plain": [
- "262144"
- ]
- },
- "execution_count": 5,
- "metadata": {},
- "output_type": "execute_result"
- }
- ],
+ "outputs": [],
"source": [
"def factorial(x):\n",
" \"returns the factorial of x\"\n",
@@ -140,13 +133,6 @@
"\n",
"factorial(4)"
]
- },
- {
- "cell_type": "code",
- "execution_count": null,
- "metadata": {},
- "outputs": [],
- "source": []
}
],
"metadata": {
@@ -165,7 +151,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
- "version": "3.12.7"
+ "version": "3.13.2"
},
"latex_envs": {
"LaTeX_envs_menu_present": true,
diff --git a/book/exercise_notebooks/exercise_notebook_4_debugging.zip b/book/exercise_notebooks/exercise_notebook_4_debugging.zip
new file mode 100644
index 0000000..a269e98
Binary files /dev/null and b/book/exercise_notebooks/exercise_notebook_4_debugging.zip differ
diff --git a/book/notebook_3_structures_loops/PythonNotebook3_loops.ipynb b/book/notebook_3_structures_loops/PythonNotebook3_loops.ipynb
index b004e1a..b28bdfc 100644
--- a/book/notebook_3_structures_loops/PythonNotebook3_loops.ipynb
+++ b/book/notebook_3_structures_loops/PythonNotebook3_loops.ipynb
@@ -278,25 +278,57 @@
},
{
"cell_type": "code",
- "execution_count": null,
+ "execution_count": 1,
"metadata": {},
- "outputs": [],
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "f = [-2, 4, 16, 40, 82, 148]\n"
+ ]
+ }
+ ],
"source": [
"x = [0, 1, 2, 3, 4, 5]\n",
"f = [x[0] ** 3 + 5*x[0] - 2, x[1] ** 3 + 5*x[1] - 2, x[2] ** 3 + 5*x[2] - 2, x[3] ** 3 + 5*x[3] - 2, x[4] ** 3 + 5*x[4] - 2, x[5] ** 3 + 5*x[5] - 2]\n",
"print(f'f = {f }')"
]
},
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "You can see above, that a list was created by using the equation for every item in $x$. A more convenient way is to use a for loop, as shown below. This is especially important if you need to cycle over a large number of items/values.\n",
+ "\n",
+ "You can see that we first create an empty list $f$; in each cycle of the loop, we will then add a new item to $f$. In order to do so, we use .append (see Section 3.1)."
+ ]
+ },
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
- "outputs": [],
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "In this cycle we added f(0) = -2\n",
+ "In this cycle we added f(1) = 4\n",
+ "In this cycle we added f(2) = 16\n",
+ "In this cycle we added f(3) = 40\n",
+ "In this cycle we added f(4) = 82\n",
+ "In this cycle we added f(5) = 148\n",
+ "f(x) = [-2, 4, 16, 40, 82, 148]\n"
+ ]
+ }
+ ],
"source": [
"x = [0, 1, 2, 3, 4, 5]\n",
"f = []\n",
"for i in x:\n",
" f.append(x[i] ** 3 + 5*x[i] - 2)\n",
+ " print(f'In this cycle we added f({x[i]}) = {f[i]}')\n",
"print(f'f = {f }')"
]
},
@@ -651,7 +683,7 @@
}
},
"source": [
- "As you can see, with the help of the continue keyword we managed to skip some of the iterations. Also worth noting that $0$ is divisible by any number, for that reason the calculate_cool_function(i) at i = 0 didn't run."
+ "As you can see, with the help of the continue keyword we skipped the execution of calculate_cool_function(i)< for all even $i$. Also worth noting that $0$ is divisible by any number, for that reason the calculate_cool_function(i) at i = 0 didn't run."
]
},
{
@@ -705,6 +737,20 @@
"for i in range(3, 17, 2):\n",
" print(f'i is {i}')"
]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "#### After this Chapter you should be able to:\n",
+ "\n",
+ "- understand the differences between **`list`**, **`tuple`**, and **`dict`**\n",
+ "- slice lists and tuples\n",
+ "- use for loops\n",
+ "- use while loops\n",
+ "- use break and continue in loops\n",
+ "- understand range()"
+ ]
}
],
"metadata": {
diff --git a/book/notebook_4_debugging/PythonNotebook4_debugging.ipynb b/book/notebook_4_debugging/PythonNotebook4_debugging.ipynb
index b805833..02b56fe 100644
--- a/book/notebook_4_debugging/PythonNotebook4_debugging.ipynb
+++ b/book/notebook_4_debugging/PythonNotebook4_debugging.ipynb
@@ -296,20 +296,19 @@
"source": [
"#### After this Chapter you should be able to:\n",
"\n",
- "- understand the differences between **`list`**, **`tuple`**, and **`dict`**\n",
- "- slice lists and tuples\n",
- "- use for loops\n",
- "- use while loops\n",
- "- use break and continue in loops\n",
- "- understand range()\n",
"- know different types of errors\n",
"- have a plan when debugging your code"
]
+ },
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": []
}
],
"metadata": {
"kernelspec": {
- "display_name": "Python 3 (ipykernel)",
+ "display_name": "base",
"language": "python",
"name": "python3"
},
@@ -323,7 +322,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
- "version": "3.10.0"
+ "version": "3.13.2"
},
"latex_envs": {
"LaTeX_envs_menu_present": true,
@@ -342,11 +341,6 @@
"latex_user_defs": false,
"report_style_numbering": false,
"user_envs_cfg": false
- },
- "vscode": {
- "interpreter": {
- "hash": "1fe2f2b718b1108b9c4176932db8a0ead471245140baaa21ea96a4066683e6b2"
- }
}
},
"nbformat": 4,
diff --git a/book/notebook_4_debugging/PythonNotebook4_first_page copy.ipynb b/book/notebook_4_debugging/PythonNotebook4_first_page.ipynb
similarity index 84%
rename from book/notebook_4_debugging/PythonNotebook4_first_page copy.ipynb
rename to book/notebook_4_debugging/PythonNotebook4_first_page.ipynb
index 9a24edb..2a22138 100644
--- a/book/notebook_4_debugging/PythonNotebook4_first_page copy.ipynb
+++ b/book/notebook_4_debugging/PythonNotebook4_first_page.ipynb
@@ -17,7 +17,7 @@
"# 4: Debugging\n",
"