Basic use of Python (Practice)
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This document provides examples for practicing basic Python operations, control flow statements, and graphing with matplotlib. It includes examples to: 1) Create lists using range() and dictionary using zip(); 2) Print "fizz" or "buzz" based on modulo (%) operations and create a list of multiples of 3 and 5 between 1-20; 3) Find the 10th Fibonacci number using a recursive function; 4) Draw the graph of a binary entropy function using np.log2().
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![Basic data types
• Create following lists with range function.
1. [0, 1, 2, 3, 4]
2. [3, 4, 5, 6, 7]
3. [3, 6, 9, 12, 15, 18]
4. [2, 4, 6, 8, 12, 16, 20] hint: use + operator](https://image.slidesharecdn.com/pylecturepractice-150812094402-lva1-app6892/85/Basic-use-of-Python-Practice-3-320.jpg)
![Basic data types
• Create a dictionary that
1. Keys are [0, 1, …, 10]
2. Values are (key) * 2
i.e. d[0]=0, d[1]=2, d[2]=4, …, d[10]=20
Hint: use zip() function](https://image.slidesharecdn.com/pylecturepractice-150812094402-lva1-app6892/85/Basic-use-of-Python-Practice-4-320.jpg)
![Control flow statements practice
• Create a list only contains
• Multiple of 3 or 5 (3, 5, 6, 9…)
• Between 1 and 20
i.e. [3, 5, 6, 9, 10, 12, 15, 18, 20]](https://image.slidesharecdn.com/pylecturepractice-150812094402-lva1-app6892/85/Basic-use-of-Python-Practice-7-320.jpg)
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- 1. Basic use of Python -Practice- National Institute of Technology, Anan College, JAPAN Yoshiki Satotani
- 3. Basic data types • Create following lists with range function. 1. [0, 1, 2, 3, 4] 2. [3, 4, 5, 6, 7] 3. [3, 6, 9, 12, 15, 18] 4. [2, 4, 6, 8, 12, 16, 20] hint: use + operator
- 4. Basic data types • Create a dictionary that 1. Keys are [0, 1, …, 10] 2. Values are (key) * 2 i.e. d[0]=0, d[1]=2, d[2]=4, …, d[10]=20 Hint: use zip() function
- 5. 2. Control flow statements
- 6. Control flow statements practice • For integer variable named ‘x’, • Print ‘fizz’ if x can be divided by 3 • Print ‘buzz’ if x can be divided by 5 (e.g. if x is 10, print ‘buzz’, x is 15, print ‘fizz buzz’) (hint: use % operator(e.g. 10 % 3 = 1, 14 % 5 = 4))
- 7. Control flow statements practice • Create a list only contains • Multiple of 3 or 5 (3, 5, 6, 9…) • Between 1 and 20 i.e. [3, 5, 6, 9, 10, 12, 15, 18, 20]
- 8. Control flow statements practice • Find the 10-th Fibonacci sequence • Fibonacci sequence is • 0, 1, 1, 2, 3, 5, 8, … • The next number is found by adding up the two numbers before it(e.g. 5th number 3 = 2 + 1). • Hint: You need to use recursive function
- 9. 3. Graph with matplotlib
- 10. Graph practice • Draw the graph of binary entropy function 𝐻 𝑝 = −𝑝log2 𝑝 − 1 − 𝑝 log2 1 − 𝑝 • Hint: use np.log2 to calculate log2