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Daily Edition · Page 4

THE DAILY INDEX

Technology, AI, software, security, crypto and business

ARTICLES & TUTORIALS

TLDR Dev

TLDR Dev

A VERY FAST 64–BIT DATE ALGORITHM: 30–40% FASTER

This article presents a very fast date conversion algorithm that provides accurate results over a period of ±1.89 trillion years. The algorithm uses only 4 multiplications, compared to other fast date algorithms, which have always used 7 or more expensive computations. It calculates years backwards, which removes various intermediate steps. The algorithm uses a year-modulus-bit shift technique to calculate day-of-year, removing a division. It uses the 'Julian Map' technique to speed up 100/400 year calculation, removing two more hardware multiplications.

benjoffe.com · 15 min

TLDR Dev

GEMINI CLI TIPS AND TRICKS

Gemini CLI is an open-source AI assistant that brings Google's Gemini model to the terminal. This is a guide of 30 pro tips for using Gemini CLI correctly that covers topics like persistent context, custom commands, extending functionality with MCP servers, memory management, checkpointing, file referencing, on-the-fly tool creation, system troubleshooting, automation, and IDE integration. The guide also describes how to use it with GitHub Actions and custom extensions.

github.com · 92 min

TLDR IndexPage 4