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ab54803
01_Fundamentals.ipynb
andreadeans Oct 15, 2018
e5ced20
Merge remote-tracking branch 'upstream/master'
andreadeans Oct 15, 2018
c92a53d
ok
andreadeans Oct 16, 2018
62082f3
yes
andreadeans Oct 16, 2018
df82bbb
yes
andreadeans Oct 17, 2018
83ad8fd
yes
andreadeans Oct 17, 2018
3cde8da
yes
andreadeans Oct 17, 2018
a9ddca8
yes
andreadeans Oct 22, 2018
3a63aa6
saves
andreadeans Nov 5, 2018
02ca658
done
andreadeans Nov 15, 2018
4572de8
exercise 3
andreadeans Nov 20, 2018
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233 changes: 187 additions & 46 deletions 01_Fundamentals.ipynb
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -87,9 +87,20 @@
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"execution_count": 15,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"4\n",
"8\n",
"('cube', 8)\n",
"('square', 4)\n"
]
}
],
"source": [
"def square(x):\n",
" \"\"\"Square of x.\"\"\"\n",
Expand Down Expand Up @@ -236,9 +247,22 @@
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"execution_count": 19,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"[0, 1, 4, 9, 16]\n",
"0\n",
"1\n",
"4\n",
"9\n",
"16\n"
]
}
],
"source": [
"x = list(map(square, range(5))) \n",
"print (x)\n",
Expand Down Expand Up @@ -289,9 +313,20 @@
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"execution_count": 13,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"15"
]
},
"execution_count": 13,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"from functools import reduce\n",
"\n",
Expand All @@ -313,9 +348,20 @@
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"execution_count": 24,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"(1, 10, 'a')\n",
"(2, 20, 'b')\n",
"(3, 30, 'c')\n",
"(4, 40, 'd')\n"
]
}
],
"source": [
"xs = [1, 2, 3, 4]\n",
"ys = [10, 20, 30, 40]\n",
Expand All @@ -334,9 +380,22 @@
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"execution_count": 18,
"metadata": {},
"outputs": [
{
"ename": "TypeError",
"evalue": "<lambda>() takes exactly 2 arguments (1 given)",
"output_type": "error",
"traceback": [
"\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
"\u001b[0;31mTypeError\u001b[0m Traceback (most recent call last)",
"\u001b[0;32m<ipython-input-18-e7c2fca7a474>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[1;32m 4\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 5\u001b[0m \u001b[0mxs\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mrange\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;36m5\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 6\u001b[0;31m \u001b[0;32mprint\u001b[0m \u001b[0;34m(\u001b[0m\u001b[0mcustom_sum\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mxs\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0msquare\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m 7\u001b[0m \u001b[0;32mprint\u001b[0m \u001b[0;34m(\u001b[0m\u001b[0mcustom_sum\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mxs\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcube\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 8\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n",
"\u001b[0;32m<ipython-input-18-e7c2fca7a474>\u001b[0m in \u001b[0;36mcustom_sum\u001b[0;34m(xs, transform)\u001b[0m\n\u001b[1;32m 1\u001b[0m \u001b[0;32mdef\u001b[0m \u001b[0mcustom_sum\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mxs\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mtransform\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 2\u001b[0m \u001b[0;34m\"\"\"Returns the sum of xs after a user specified transform.\"\"\"\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 3\u001b[0;31m \u001b[0;32mreturn\u001b[0m \u001b[0msum\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mmap\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mtransform\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mxs\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m 4\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m 5\u001b[0m \u001b[0mxs\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mrange\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;36m5\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
"\u001b[0;31mTypeError\u001b[0m: <lambda>() takes exactly 2 arguments (1 given)"
]
}
],
"source": [
"def custom_sum(xs, transform):\n",
" \"\"\"Returns the sum of xs after a user specified transform.\"\"\"\n",
Expand Down Expand Up @@ -398,28 +457,59 @@
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"execution_count": 10,
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"7"
]
},
"execution_count": 10,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"sum = lambda x,y: x+y\n",
"sum(3,4)"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"execution_count": 11,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"1\n",
"5\n",
"11\n",
"19\n",
"29\n"
]
}
],
"source": [
"for i in map(lambda x: x*x, range(5)): print (i)"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"execution_count": 12,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"285\n"
]
}
],
"source": [
"# what does this function do?\n",
"from functools import reduce\n",
Expand All @@ -436,9 +526,17 @@
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"execution_count": 5,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"[1, 1, 2, 3, 5, 8, 13, 21, 34, 55]\n"
]
}
],
"source": [
"def fib1(n):\n",
" \"\"\"Fib with recursion.\"\"\"\n",
Expand All @@ -456,9 +554,17 @@
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"execution_count": 6,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"[1, 1, 2, 3, 5, 8, 13, 21, 34, 55]\n"
]
}
],
"source": [
"# In Python, a more efficient version that does not use recursion is\n",
"\n",
Expand All @@ -474,9 +580,18 @@
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"execution_count": 8,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"100 loops, best of 3: 4.66 ms per loop\n",
"100000 loops, best of 3: 3.41 µs per loop\n"
]
}
],
"source": [
"# check indeed the timing:\n",
"\n",
Expand Down Expand Up @@ -585,7 +700,7 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 3,
"metadata": {},
"outputs": [],
"source": [
Expand All @@ -604,9 +719,17 @@
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"execution_count": 4,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Whee!\n"
]
}
],
"source": [
"say_whee()"
]
Expand All @@ -624,9 +747,18 @@
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"execution_count": 6,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"('buddy', 12)\n",
"6.0\n"
]
}
],
"source": [
"class Pet:\n",
" # the \"constructor\"\n",
Expand All @@ -648,9 +780,18 @@
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"execution_count": 7,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"tobia\n",
"70\n"
]
}
],
"source": [
"# ineritance is straightforward\n",
"class Dog(Pet):\n",
Expand Down Expand Up @@ -700,14 +841,14 @@
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
"version": 2
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.5.4"
"pygments_lexer": "ipython2",
"version": "2.7.15rc1"
}
},
"nbformat": 4,
Expand Down
6 changes: 3 additions & 3 deletions 01ex_Fundamentals.ipynb
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -151,14 +151,14 @@
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
"version": 2
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.5.4"
"pygments_lexer": "ipython2",
"version": "2.7.15rc1"
}
},
"nbformat": 4,
Expand Down
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