Questions and Answers
What is the base of the octal number system?
8
How are binary numbers represented?
With a prefix of 0b
Which Python function can be used to convert a decimal number to binary?
bin()
How is a binary number converted to decimal?
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Why is understanding number systems important in Python?
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Study Notes
- In programming, different number systems are used such as binary, decimal, octal, and hexadecimal.
- Binary system has a base of 2, decimal system has a base of 10, octal system has a base of 8, and hexadecimal system has a base of 16.
- Conversion between number systems can be done manually or using Python functions like
bin()for decimal to binary,oct()for decimal to octal, andhex()for decimal to hexadecimal. - Binary numbers are represented by adding a prefix of
0b, octal numbers with0o, and hexadecimal numbers with `0x before the value. - To convert a binary number to decimal, each digit is multiplied by 2 raised to its position from right to left, and then the results are summed.
- The speaker gives homework assignments to practice converting numbers between different systems manually.
- Understanding number systems is important for working with bitwise operators in Python.
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