Ellipsoids Ellipsoid is a three-dimensional shape in geometry formed by rotating an ellipse around its major or minor axis. The shape of the Earth is not a perfect sphere but is closer to a flattened sphere, hence referred to as the “Earth ellipsoid.” Specifically, the Earth is slightly bulging at the equator and slightly flattened … Read more
In the Python programming language, a list is a very basic and important data structure. It allows us to store a sequence of ordered elements, which can be of any type, including numbers, strings, other lists, etc. Python’s lists provide a flexible way to organize and manipulate data. 1. Creating Lists Lists can be created … Read more
The first time I truly experienced the power of sets was while working on a user behavior analysis project for a social networking site. As I stared at the progress bar on the screen, my heart raced—I had to deduplicate 15 million user browsing records in real-time and detect abnormal behaviors. Using a list? The … Read more
1. Introduction: The Core Power of Dynamic Sequences The list, as the most flexible mutable sequence type in Python, is a core tool for handling dynamic data collections. Unlike tuples, lists support real-time modifications, dynamic expansions, and a rich set of built-in methods, making them the preferred structure for scenarios such as data collection, algorithm … Read more
Performance Revolution! Enhancing Python Key Algorithm Efficiency with C Extensions At three o’clock that morning, the CPU usage of the online server suddenly soared to 95%, and the alarm message woke me from my sleep. When I opened my laptop, I found that the data processing module I had restructured a few days ago was … Read more
📦 Beginner’s Guide to Packaging Python Programs: A Dual-Platform Guide for Windows/Linux 🌟 Why Package? ✅ Users do not need to install the Python environment ✅ Protect source code ✅ One-click installation/uninstallation is more convenient 🖥 Windows Platform: Packaging EXE Files Recommended Tool: PyInstaller (Five-Star Rated Tool) # One-click installation pip install pyinstaller 🚀 3 … Read more
The star journey of the new generation comedian Qin Xiaoxian from the Deyun Society resembles a crosstalk drama filled with twists and turns. From being exposed by his ex-girlfriend to receiving support from the leader Guo Degang for a comeback, this crosstalk actor, who carries the aura of a “pure boy,” is experiencing the most … Read more
Phil S. Baran and his team have pioneered many astonishing electrocatalytic reactions with extraordinary creativity and foresight, which not only provide unprecedented green and efficient chemical synthesis but also offer scientists more elegant and sophisticated tools. His research has injected new vitality into the field of electrocatalysis, shining like a dazzling light, leading the chemistry … Read more
2025 Zhejiang Provincial Examination C Paper Real Questions and Reference AnswersC Volume and Reference Answers Data1 From bustling tourist attractions to vibrant dining establishments, the lively consumption scenes reflect the enormous potential of China’s consumer market.In 2023, the role of consumption as a driving force for economic growth has become more pronounced. According to data … Read more
1. Basic Information of the Article Publication Date: October 19, 2016 First Institution: College of Agronomy and Biotechnology, Southwest University, Chongqing 400716, China Corresponding Authors: Jia-Na Li ([email protected]) and Zhe Liang ([email protected]) Published Title: Genome-Wide Analysis, Classification, Evolution, and Expression Analysis of the Cytochrome P450 93 Family in Land Plants Published Journal: PLOS ONE 2. … Read more