 List of TeX extensions

TeX is a typesetting system that has been extended in various ways to enhance its capabilities, add new features, and improve its usability in different contexts. Here are some notable extensions and packages associated with TeX, particularly LaTeX, which is a widely used document preparation system built on top of TeX: ### Commonly Used LaTeX Packages and Extensions 1. **amsmath** - Provides advanced math typesetting features and environments.