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Commit 82ef777

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Added If else
1 parent f0fab3e commit 82ef777

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3 files changed

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3 files changed

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‎.DS_Store‎

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{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## 1. If/Else\n",
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"Decision-making is required when we want to execute a code only if a certain condition is satisfied.\n",
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"\n",
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"The `if...elif...else` statement is used in Python for decision-making."
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]
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},
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{
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"cell_type": "code",
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"execution_count": 4,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"3 is a positive number.\n",
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"This is always printed.\n",
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"This is also always printed.\n"
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]
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}
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],
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"source": [
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"#Example of If/Else statement\n",
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"#If the number is positive, we print an appropriate message\n",
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"\n",
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"num = 3\n",
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"if num > 0:\n",
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" print(num, \"is a positive number.\")\n",
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"print(\"This is always printed.\")\n",
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"\n",
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"num = -1\n",
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"if num > 0:\n",
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" print(num, \"is a positive number.\")\n",
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"print(\"This is also always printed.\")"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 5,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"Positive number\n"
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]
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}
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],
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"source": [
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"#Example of If/Elif/Else statement\n",
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"'''In this program,\n",
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"we check if the number is positive or\n",
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"negative or zero and\n",
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"display an appropriate message'''\n",
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"\n",
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"num = 3.4\n",
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"\n",
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"# Try these two variations as well:\n",
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"# num = 0\n",
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"# num = -4.5\n",
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"\n",
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"if num > 0:\n",
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" print(\"Positive number\")\n",
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"elif num == 0:\n",
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" print(\"Zero\")\n",
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"else:\n",
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" print(\"Negative number\")"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 6,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"Enter a number: 10\n",
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"Positive number\n"
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]
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}
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],
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"source": [
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"#Example of nested If statement\n",
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"'''In this program, we input a number\n",
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"check if the number is positive or\n",
95+
"negative or zero and display\n",
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"an appropriate message\n",
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"This time we use nested if statement'''\n",
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"\n",
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"num = float(input(\"Enter a number: \"))\n",
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"if num >= 0:\n",
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" if num == 0:\n",
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" print(\"Zero\")\n",
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" else:\n",
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" print(\"Positive number\")\n",
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"else:\n",
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" print(\"Negative number\")"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
129+
"mimetype": "text/x-python",
130+
"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.8.5"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 4
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}

‎2. Flow_control/1. If-Else.ipynb‎

Lines changed: 138 additions & 0 deletions
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{
2+
"cells": [
3+
{
4+
"cell_type": "markdown",
5+
"metadata": {},
6+
"source": [
7+
"## 1. If/Else\n",
8+
"Decision-making is required when we want to execute a code only if a certain condition is satisfied.\n",
9+
"\n",
10+
"The `if...elif...else` statement is used in Python for decision-making."
11+
]
12+
},
13+
{
14+
"cell_type": "code",
15+
"execution_count": 4,
16+
"metadata": {},
17+
"outputs": [
18+
{
19+
"name": "stdout",
20+
"output_type": "stream",
21+
"text": [
22+
"3 is a positive number.\n",
23+
"This is always printed.\n",
24+
"This is also always printed.\n"
25+
]
26+
}
27+
],
28+
"source": [
29+
"#Example of If/Else statement\n",
30+
"#If the number is positive, we print an appropriate message\n",
31+
"\n",
32+
"num = 3\n",
33+
"if num > 0:\n",
34+
" print(num, \"is a positive number.\")\n",
35+
"print(\"This is always printed.\")\n",
36+
"\n",
37+
"num = -1\n",
38+
"if num > 0:\n",
39+
" print(num, \"is a positive number.\")\n",
40+
"print(\"This is also always printed.\")"
41+
]
42+
},
43+
{
44+
"cell_type": "code",
45+
"execution_count": 5,
46+
"metadata": {},
47+
"outputs": [
48+
{
49+
"name": "stdout",
50+
"output_type": "stream",
51+
"text": [
52+
"Positive number\n"
53+
]
54+
}
55+
],
56+
"source": [
57+
"#Example of If/Elif/Else statement\n",
58+
"'''In this program,\n",
59+
"we check if the number is positive or\n",
60+
"negative or zero and\n",
61+
"display an appropriate message'''\n",
62+
"\n",
63+
"num = 3.4\n",
64+
"\n",
65+
"# Try these two variations as well:\n",
66+
"# num = 0\n",
67+
"# num = -4.5\n",
68+
"\n",
69+
"if num > 0:\n",
70+
" print(\"Positive number\")\n",
71+
"elif num == 0:\n",
72+
" print(\"Zero\")\n",
73+
"else:\n",
74+
" print(\"Negative number\")"
75+
]
76+
},
77+
{
78+
"cell_type": "code",
79+
"execution_count": 6,
80+
"metadata": {},
81+
"outputs": [
82+
{
83+
"name": "stdout",
84+
"output_type": "stream",
85+
"text": [
86+
"Enter a number: 10\n",
87+
"Positive number\n"
88+
]
89+
}
90+
],
91+
"source": [
92+
"#Example of nested If statement\n",
93+
"'''In this program, we input a number\n",
94+
"check if the number is positive or\n",
95+
"negative or zero and display\n",
96+
"an appropriate message\n",
97+
"This time we use nested if statement'''\n",
98+
"\n",
99+
"num = float(input(\"Enter a number: \"))\n",
100+
"if num >= 0:\n",
101+
" if num == 0:\n",
102+
" print(\"Zero\")\n",
103+
" else:\n",
104+
" print(\"Positive number\")\n",
105+
"else:\n",
106+
" print(\"Negative number\")"
107+
]
108+
},
109+
{
110+
"cell_type": "code",
111+
"execution_count": null,
112+
"metadata": {},
113+
"outputs": [],
114+
"source": []
115+
}
116+
],
117+
"metadata": {
118+
"kernelspec": {
119+
"display_name": "Python 3",
120+
"language": "python",
121+
"name": "python3"
122+
},
123+
"language_info": {
124+
"codemirror_mode": {
125+
"name": "ipython",
126+
"version": 3
127+
},
128+
"file_extension": ".py",
129+
"mimetype": "text/x-python",
130+
"name": "python",
131+
"nbconvert_exporter": "python",
132+
"pygments_lexer": "ipython3",
133+
"version": "3.8.5"
134+
}
135+
},
136+
"nbformat": 4,
137+
"nbformat_minor": 4
138+
}

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