Blog

After Building a Complex Project with Codex: A Personal Retrospective

After bringing Fast Sub to its current stage, I finally feel able to answer a question I kept asking myself a month ago: if I really want to use tools like Codex or Claude Code ...

Perlin Noise - Principles and Implementation

“There is no true randomness in nature, only patterns we haven’t understood yet.” — Philosophy of Perlin Noise

Reading Notes on Game Design Workshop

Reading goal: understand the problems that may arise when prototyping and designing games.

Reading Notes on Energy Management

The table of contents already puts me off: four principles, three steps, five obstacles. The usual bestseller routine, dressed up to look scientific. I feel the most valuable th...

Python Async IO Learning Notes

Async is not “faster,” but “smarter waiting.”

Pytorch Learning Notes

Reference tutorial: https://datawhalechina.github.io/thorough-pytorch/ This tutorial is pretty rubbish: it describes things but does not explain them. Switching to other books h...

Docker Introduction and Practice

Docker is an operating-system-level virtualization technology. Its isolated processes are independent of the host and other isolated processes, and are also called containers.

Depth-First Search (DFS)

Problem:

TCP Port Forwarding Notes

The program is single-threaded and nonblocking, with client and server components. It maps a TCP service (app) running on a particular port in a private network (app port, such ...

Investigating and Fixing MySQL Slow Queries

Some time after a feature went live, slow queries started appearing. Setting aside business-specific data compatibility handling and simplifying the statements, the slow queries...

Recursion

Recursion is when a function repeatedly calls itself. Defining a recursive function generally involves two steps: identifying the base case and finding the recursive relation. A...

Reading Notes on Code Style

Constants

How SSH Works

Encryption mainly keeps data safe during transmission. It combines asymmetric and symmetric encryption. Asymmetric encryption protects the transmission of the shared passphrase;...

Bash Programming Practice

1.Count the lines in .c files in a working directory and all its subdirectories

Introduction to Bash Programming

Variables can be copied directly and assigned values multiple times. There must be no spaces on either side of =. To use a variable, prefix it with $; when embedding it in a lon...

Common Git Commands

git merge leaves existing commits unchanged, while git rebase appends the feature branch’s changes as patches after the master branch. git merge faithfully preserves commit hist...

Getting Started with Git

Initialize: Use git init workspace to create the initial workspace and some initial Git configuration files.

Setting Up nginx as an Unprivileged User Where Possible

Installation creates an nginx directory.

Installing and Using Debian 10

Setting Up a Linux Server

Create a server

Mathematical Models and Predictions for the Wuhan Pneumonia Outbreak

So far, Imperial College has published two reports on the early number of infections in the novel pneumonia outbreak in Wuhan: one on January 17 and another on January 22. Both ...

Leetcode Search Problems

Suppose an array sorted in ascending order has been rotated at an unknown pivot.

Leetcode Sorting Problem Notes

Merge two sorted linked lists into a new sorted linked list and return it. The new list is formed by joining all the nodes from the two given lists.

Acne Treatment

After using exfoliating acids over winter break, I no longer have severe inflammatory acne. It still flares up occasionally because of the weather and my diet, though. As for th...

Setting Up a Paddle Fluid Development Environment with VS Code

On Ubuntu, visit the VS Code website [https://code.visualstudio.com/], download the deb package, and install it.

Autonomous Driving: Research Status and Future Prospects

In recent years, developments in autonomous driving have appeared constantly across the media, attracting attention and expanding our imagination of future travel. The technolog...

Reflections on Yellow River, Green Mountains

I picked up this book because recommendations often mentioned “failure” and “autobiography.” Its author, Huang Renzong, also wrote another book I wanted to read, The Fifteenth Y...