Home Backend Development Python Tutorial How to determine parity using python

How to determine parity using python

Apr 11, 2024 am 02:35 AM
python

How to use Python to determine parity: Modulo operation: If the remainder of a number divided by 2 is 0, it is an even number. Binary bit mask: The lowest bit of even numbers is 0 in binary representation, and the lowest bit of odd numbers is 1. Logical operations: Even numbers can be represented as multiples of 2, odd numbers cannot.

How to determine parity using python

How to use Python to determine parity

It is very simple to determine whether a number is odd or even in Python.

1. Modulo operation

The most common method is to use the modulus operator (%). A number is even if the remainder when divided by 2 is 0; otherwise, it is odd.

def is_even(number):
    """
    判断一个数字是否为偶数。

    参数:
        number:要判断的数字

    返回:
        True 如果数字为偶数,否则为 False
    """
    return number % 2 == 0
Copy after login

2. Binary bit mask

Another method is to use binary bit mask. The lowest bit of the binary representation of even numbers is always 0, and the lowest bit of odd numbers is always 1. Therefore, we can use the bitwise AND operator (&) to operate a number with 1. If the result is 0, the number is even; otherwise, it is odd.

def is_even_bitmask(number):
    """
    使用位掩码判断一个数字是否为偶数。

    参数:
        number:要判断的数字

    返回:
        True 如果数字为偶数,否则为 False
    """
    return (number & 1) == 0
Copy after login

3. Logical operations

Finally, we can also use logical operations to determine parity. Even numbers can be expressed as multiples of 2, but odd numbers cannot. Therefore, we can use the logical XOR operator (^) to operate a number with 1. If the result is 0, the number is even; otherwise, it is odd.

def is_even_logical(number):
    """
    使用逻辑运算判断一个数字是否为偶数。

    参数:
        number:要判断的数字

    返回:
        True 如果数字为偶数,否则为 False
    """
    return (number ^ 1) == 0
Copy after login

The above is the detailed content of How to determine parity using python. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Can the Python interpreter be deleted in Linux system? Can the Python interpreter be deleted in Linux system? Apr 02, 2025 am 07:00 AM

Regarding the problem of removing the Python interpreter that comes with Linux systems, many Linux distributions will preinstall the Python interpreter when installed, and it does not use the package manager...

How to solve the problem of Pylance type detection of custom decorators in Python? How to solve the problem of Pylance type detection of custom decorators in Python? Apr 02, 2025 am 06:42 AM

Pylance type detection problem solution when using custom decorator In Python programming, decorator is a powerful tool that can be used to add rows...

How to solve permission issues when using python --version command in Linux terminal? How to solve permission issues when using python --version command in Linux terminal? Apr 02, 2025 am 06:36 AM

Using python in Linux terminal...

Python 3.6 loading pickle file error ModuleNotFoundError: What should I do if I load pickle file '__builtin__'? Python 3.6 loading pickle file error ModuleNotFoundError: What should I do if I load pickle file '__builtin__'? Apr 02, 2025 am 06:27 AM

Loading pickle file in Python 3.6 environment error: ModuleNotFoundError:Nomodulenamed...

Do FastAPI and aiohttp share the same global event loop? Do FastAPI and aiohttp share the same global event loop? Apr 02, 2025 am 06:12 AM

Compatibility issues between Python asynchronous libraries In Python, asynchronous programming has become the process of high concurrency and I/O...

What should I do if the '__builtin__' module is not found when loading the Pickle file in Python 3.6? What should I do if the '__builtin__' module is not found when loading the Pickle file in Python 3.6? Apr 02, 2025 am 07:12 AM

Error loading Pickle file in Python 3.6 environment: ModuleNotFoundError:Nomodulenamed...

How to ensure that the child process also terminates after killing the parent process via signal in Python? How to ensure that the child process also terminates after killing the parent process via signal in Python? Apr 02, 2025 am 06:39 AM

The problem and solution of the child process continuing to run when using signals to kill the parent process. In Python programming, after killing the parent process through signals, the child process still...

See all articles